RUN 20260727-opus5-design-full (design)

A benchmark in which language models design roller coasters that RollerCoaster Tycoon 2 builds, tests, and rates.

Standings

design mode — models build from scratch

modelscoreintensitynausea similaritybesttokens / cost
1st claude-opus-5 7.23 9.52 5.11 0.35 round 6/6 407 in / 298k out · $11.78

score = excitement, scaled down when similarity to a stock library design exceeds 0.5 (an exact or mirrored copy scores 0)

claude-opus-5full detail →
excitementintensity×build failed
0515intensity ceiling 10excitementintensityR1R2R3R4R5R6

Round 1 verified circuit (92 pieces) trace (57) →

Serpent's Reckoning track rails supports
excitement6.56 intensity9.98 nausea5.83
length 598 m drops 10 airtime 80 tested ok similarity 0.42 (nearest: Woodchip)
right_vertical_loopleft_vertical_loopright_corkscrew_upleft_corkscrew_downleft_corkscrew_upright_corkscrew_downbrakesbrakesbrakesbrakesbrakesbrakes
92 pieces · 20 on the lift · 6 inversions
track program (92 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25",
    "down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_turn_5_up_25",
    "left_turn_5_up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 12,
      "t": "brakes"
    },
    {
      "speed": 12,
      "t": "brakes"
    },
    "flat_to_left_bank",
    "banked_left_turn_3",
    "banked_left_turn_3",
    "left_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 12,
      "t": "brakes"
    },
    {
      "speed": 12,
      "t": "brakes"
    },
    {
      "speed": 12,
      "t": "brakes"
    },
    {
      "speed": 12,
      "t": "brakes"
    }
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 37,
    "y": 30
  }
}

download scored .park

park screenshot, claude-opus-5 round 1

Round 2 verified circuit (99 pieces) trace (54, 1 rejected) →

Vespertine track rails supports
excitement6.85 intensity8.42 nausea4.38
length 672 m drops 9 airtime 65 tested ok similarity 0.40 (nearest: Viper)
right_vertical_loopleft_vertical_loopbrakesbrakesleft_corkscrew_upright_corkscrew_downright_corkscrew_upleft_corkscrew_downright_corkscrew_upleft_corkscrew_downbrakesbrakesbrakesbrakesbrakes
99 pieces · 24 on the lift · 8 inversions · 30 added, 23 removed vs the round before (69 of 92 pieces kept)
track program (99 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 18,
      "t": "brakes"
    },
    {
      "speed": 18,
      "t": "brakes"
    },
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 13,
      "t": "brakes"
    },
    "s_bend_left",
    "flat_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    }
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 34,
    "y": 40
  }
}

download scored .park

park screenshot, claude-opus-5 round 2

Round 3 verified circuit (133 pieces) trace (38) →

Ashfall track rails supports
excitement6.99 intensity8.45 nausea4.47
length 839 m drops 11 airtime 91 tested ok similarity 0.38 (nearest: Colossus (Track 1))
brakesright_vertical_loopleft_vertical_loopbrakesbrakesleft_corkscrew_upright_corkscrew_downright_corkscrew_upleft_corkscrew_downright_corkscrew_upleft_corkscrew_downbrakesbrakesbrakesbrakesbrakes
133 pieces · 35 on the lift · 8 inversions · 34 added vs the round before (99 of 99 pieces kept)
track program (133 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 25,
      "t": "brakes"
    },
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat",
    "flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 18,
      "t": "brakes"
    },
    {
      "speed": 18,
      "t": "brakes"
    },
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 13,
      "t": "brakes"
    },
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "s_bend_left",
    "flat_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    }
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 34,
    "y": 40
  }
}

download scored .park

park screenshot, claude-opus-5 round 3

Round 4 verified circuit (133 pieces) trace (50, 1 rejected) →

Cinderfall track rails supports
excitement7.04 intensity8.62 nausea4.52
length 839 m drops 11 airtime 89 tested ok similarity 0.38 (nearest: Colossus (Track 1))
brakesright_vertical_loopleft_vertical_loopbrakesbrakesleft_corkscrew_upright_corkscrew_downright_corkscrew_upleft_corkscrew_downright_corkscrew_upleft_corkscrew_downbrakesbrakesbrakesbrakesbrakes
133 pieces · 35 on the lift · 8 inversions · identical to the round before
track program (133 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 25,
      "t": "brakes"
    },
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat",
    "flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 21,
      "t": "brakes"
    },
    {
      "speed": 21,
      "t": "brakes"
    },
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 17,
      "t": "brakes"
    },
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "s_bend_left",
    "flat_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    }
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 34,
    "y": 40
  }
}

download scored .park

park screenshot, claude-opus-5 round 4

Round 5 verified circuit (133 pieces) trace (51) →

Ashfall track rails supports
excitement7.04 intensity8.62 nausea4.52
length 839 m drops 11 airtime 89 tested ok similarity 0.38 (nearest: Colossus (Track 1))
brakesright_vertical_loopleft_vertical_loopbrakesbrakesleft_corkscrew_upright_corkscrew_downright_corkscrew_upleft_corkscrew_downright_corkscrew_upleft_corkscrew_downbrakesbrakesbrakesbrakesbrakes
133 pieces · 35 on the lift · 8 inversions · identical to the round before
track program (133 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 25,
      "t": "brakes"
    },
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat",
    "flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 21,
      "t": "brakes"
    },
    {
      "speed": 21,
      "t": "brakes"
    },
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    {
      "speed": 17,
      "t": "brakes"
    },
    "flat",
    "flat",
    "flat",
    "flat",
    "flat",
    "s_bend_left",
    "flat_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    }
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 34,
    "y": 40
  }
}

download scored .park

park screenshot, claude-opus-5 round 5

Round 6 verified circuit (139 pieces) trace (46, 2 rejected) →

Blackwyrm's Seven Coils track rails supports
excitement7.23 intensity9.52 nausea5.11
length 907 m drops 14 airtime 97 tested ok similarity 0.35 (nearest: Colossus (Track 1))
brakesright_vertical_loopleft_vertical_loopbrakesbrakesleft_corkscrew_upright_corkscrew_downright_corkscrew_upleft_corkscrew_downright_corkscrew_upleft_corkscrew_downbrakesright_corkscrew_upleft_corkscrew_downleft_corkscrew_upright_corkscrew_downbrakesboosterboosterboosterboosterbrakesbrakesbrakesbrakes
139 pieces · 34 on the lift · 12 inversions · 12 added, 6 removed vs the round before (127 of 133 pieces kept)
track program (139 pieces)
{
  "pieces": [
    "begin_station",
    "middle_station",
    "middle_station",
    "end_station",
    {
      "chain": true,
      "t": "flat_to_up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25"
    },
    {
      "chain": true,
      "t": "up_25_to_flat"
    },
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 25,
      "t": "brakes"
    },
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_up_25",
    "right_vertical_loop",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25",
    "up_25_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    "flat_to_down_25",
    "down_25_to_down_60",
    "down_60_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "left_vertical_loop",
    "down_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat",
    "flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 21,
      "t": "brakes"
    },
    {
      "speed": 21,
      "t": "brakes"
    },
    "left_corkscrew_up",
    "right_corkscrew_down",
    "flat_to_down_25",
    "down_25_to_flat",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25",
    "up_25_to_flat",
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_down_25",
    "down_25",
    "down_25_to_flat",
    {
      "speed": 18,
      "t": "brakes"
    },
    "right_corkscrew_up",
    "left_corkscrew_down",
    "flat_to_up_25",
    "up_25_to_flat",
    "flat_to_down_25",
    "down_25_to_flat",
    "left_corkscrew_up",
    "right_corkscrew_down",
    {
      "speed": 17,
      "t": "brakes"
    },
    "s_bend_left",
    "flat_to_right_bank",
    "banked_right_turn_5",
    "banked_right_turn_5",
    "right_bank_to_flat",
    {
      "speed": 20,
      "t": "booster"
    },
    {
      "speed": 20,
      "t": "booster"
    },
    {
      "speed": 20,
      "t": "booster"
    },
    {
      "speed": 20,
      "t": "booster"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    {
      "speed": 10,
      "t": "brakes"
    },
    "flat"
  ],
  "ride_type": 51,
  "start": {
    "dir": 2,
    "x": 34,
    "y": 40
  }
}

download scored .park

park screenshot, claude-opus-5 round 6

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