Recorded live in Godot 4.7 · 100% AI-generated assets

Same prompts, 3 AIs
26 2D games each

Three AI models got the same list of prompts, and each built 26 2D games from scratch. Code, art and sound are all AI-generated: 2,341 SVG assets in total. Below, the three versions of each game play side by side. Click any clip to enlarge it.

CH.01 Chapter 1 · Action & Adventure7 prompts

#01

Platformer

Prompt: Side-scrolling platformer · bright cartoon

Claude Opus 5.5“小橘森林冒险” · SVG ×46
GPT 6.1 Sol“Sunseed Courier” · SVG ×15
GLM 5.3 flash“Cartoon Platformer Demo” · SVG ×21

Opus has the richest layering, GPT goes for a storybook look, and GLM plays the smoothest.

#02

Gothic Action

Prompt: Side-scrolling exploration action · dark gothic

Claude Opus 5.5“月蚀大厅” · SVG ×48
GPT 6.1 Sol“The Gilded Vigil” · SVG ×16
GLM 5.3 flash“Gothic Sanctum - Metroidvania Demo” · SVG ×21

Opus brings stained glass and candlelight, GPT a silhouetted moonlit night, and GLM a full ending sequence.

#03

Pixel Adventure

Prompt: Side-scrolling action adventure · 16-bit retro pixel art

Claude Opus 5.5“像素小冒险家” · SVG ×51
GPT 6.1 Sol“Canal Circuit” · SVG ×16
GLM 5.3 flash“Pixel Retro Castle” · SVG ×22

Opus feels the most like an NES classic, GPT built a waterway puzzle, and GLM built a whole castle.

#04

Ink-Wash Action

Prompt: Side-scrolling action · Chinese ink-wash painting

Claude Opus 5.5“墨侠 · 山水长卷” · SVG ×45
GPT 6.1 Sol“Cinnabar Crossing” · SVG ×16
GLM 5.3 flash“Inkwash Scroll” · SVG ×19

Opus’s sword energy is the most traditionally Chinese, GPT is light and elegant, and GLM uses the most negative space.

#05

Endless Runner

Prompt: Side-scrolling endless runner · flat vector with long shadows

Claude Opus 5.5“黄昏跑酷” · SVG ×33
GPT 6.1 Sol“Airmail Above” · SVG ×16
GLM 5.3 flash“Runner Flat - Dusk Dash” · SVG ×20

Opus has the most power-ups, GPT turned it into mail delivery above the clouds, and GLM runs through a purple night city.

#06

Vertical Shooter

Prompt: Vertical shoot ’em up · sci-fi neon

Claude Opus 5.5“霓虹夜隼” · SVG ×36
GPT 6.1 Sol“VESPER / Orbital Interceptor” · SVG ×14
GLM 5.3 flash“Shmup Neon” · SVG ×21

Opus fills the screen with bullets, GPT goes for a space-comic style, and GLM includes a boss fight.

#07

Hill Climb Racer

Prompt: Side-scrolling physics vehicle · vintage travel poster

Claude Opus 5.5“夕阳山路” · SVG ×38
GPT 6.1 Sol“MARE-24” · SVG ×18
GLM 5.3 flash“Hill Racer Poster” · SVG ×20

Opus and GLM both went with vintage posters, while GPT drove straight onto the Moon.

CH.02 Chapter 2 · Casual & Puzzle6 prompts

#08

Sweets Match-3

Prompt: Casual match-3 · chibi desserts

Claude Opus 5.5“甜甜三消屋” · SVG ×31
GPT 6.1 Sol“Sugarbell” · SVG ×17
GLM 5.3 flash“Match3 Sweets” · SVG ×17

Opus has the most polished candies, GPT the softest palette, and GLM the most satisfying combos.

#09

Doodle Catch

Prompt: Casual catching game · hand-drawn notebook doodles

Claude Opus 5.5“涂鸦接接乐” · SVG ×43
GPT 6.1 Sol“FIELDNOTES / SEED RAIN” · SVG ×20
GLM 5.3 flash“Doodle Catch” · SVG ×19

Opus drops the most items, GPT switched to catching seeds, and GLM has the cleanest lines.

#10

Falling-Note Rhythm

Prompt: Falling-note rhythm game · pop idol stage

Claude Opus 5.5“星光节拍” · SVG ×48
GPT 6.1 Sol“ABYSSAL ENSEMBLE” · SVG ×22
GLM 5.3 flash“Rhythm Beat Idol Stage” · SVG ×20

Opus’s idol actually dances, GPT moved the stage to the deep sea, and GLM has the flashiest hit effects.

#11

Idle Clicker

Prompt: Idle clicker · starry magical desserts

Claude Opus 5.5“星空魔法甜点工坊” · SVG ×64
GPT 6.1 Sol“THE HELIOSEED CLOCK” · SVG ×23
GLM 5.3 flash“Star Cake Clicker” · SVG ×23

Opus’s cake evolves, GPT made a solar-powered clock, and GLM’s numbers climb the fastest.

#12

Papercraft Puzzle

Prompt: Physics puzzle · paper-cut craft

Claude Opus 5.5“纸艺小刺猬回家” · SVG ×40
GPT 6.1 Sol“The Folded Valley” · SVG ×20
GLM 5.3 flash“Papercut Puzzle” · SVG ×19

Opus guides a little hedgehog home, GPT made an origami valley, and GLM uses paper-crane contraptions.

#13

Detective Hidden Object

Prompt: Hidden object & detective · Victorian gaslight illustration

Claude Opus 5.5“贝克街书房的十五条线索” · SVG ×34
GPT 6.1 Sol“THE MEMORY ARCHIVE” · SVG ×18
GLM 5.3 flash“Hidden Object - Gaslight Study” · SVG ×15

Opus and GLM both chose a gaslit study, while GPT went with a memory archive.

CH.03 Chapter 3 · Simulation & Management6 prompts

#14

Cooking Rush

Prompt: Time-management cooking · warm food-toy cartoon

Claude Opus 5.5“萌萌厨房大作战” · SVG ×59
GPT 6.1 Sol“Little Apron” · SVG ×28
GLM 5.3 flash“Cooking Rush” · SVG ×25

Opus’s customers have moods, GPT cooks in three steps, and GLM stacks burgers layer by layer.

#15

Farming

Prompt: Farming · soft picture-book style

Claude Opus 5.5“四季小农田” · SVG ×68
GPT 6.1 Sol“The Glass Garden” · SVG ×30
GLM 5.3 flash“Farm Growth” · SVG ×23

Opus has a whole farm, GPT a glass greenhouse, and GLM a scarecrow chasing off crows.

#16

Cutaway Fishing

Prompt: Fishing · fresh watercolor vector (side cutaway)

Claude Opus 5.5“湖畔剖面钓鱼” · SVG ×63
GPT 6.1 Sol“STILLWATER / A Lakeside Journal” · SVG ×27
GLM 5.3 flash“Fishing Cutaway” · SVG ×24

Opus has the most beautiful underwater light shafts, GPT looks like a lakeside journal, and GLM’s fish leap out of the water.

#17

Factory Conveyor

Prompt: Factory automation · clean industrial cartoon (orthographic top-down)

Claude Opus 5.5“铁流工坊 · 传送带试验场” · SVG ×53
GPT 6.1 Sol“Verdigris Works” · SVG ×22
GLM 5.3 flash“Factory Belts” · SVG ×25

Opus has the most complex pipelines, GPT uses verdigris gears, and GLM is the tidiest.

#18

Cutaway Base

Prompt: Cutaway base management · retro-futuristic undersea base

Claude Opus 5.5“深蓝穹顶” · SVG ×52
GPT 6.1 Sol“LITTLE ROOMS / The Joiner's Tray” · SVG ×33
GLM 5.3 flash“Cutaway Base” · SVG ×21

Opus has the most rooms, GPT turned it into a dollhouse, and GLM has a submarine passing by.

#19

Mining Sandbox

Prompt: Cutaway mining sandbox · warm hand-drawn cartoon

Claude Opus 5.5“地心小矿工” · SVG ×42
GPT 6.1 Sol“RESONANCE” · SVG ×19
GLM 5.3 flash“Mining Sandbox” · SVG ×25

Opus has the strongest cave lighting, GPT made it a grid puzzle, and GLM’s drill digs straight down.

CH.04 Chapter 4 · Strategy & Battle4 prompts

#20

Toy-Block Tower Defense

Prompt: Tower defense · toy building blocks on a tabletop

Claude Opus 5.5“积木塔防” · SVG ×59
GPT 6.1 Sol“THE SYMBIOTIC REEF” · SVG ×20
GLM 5.3 flash“Tower Defense Toy Blocks” · SVG ×22

Opus’s towers can be upgraded, GPT defends a coral reef, and GLM’s cannonball arcs are the easiest to read.

#21

Turn-Based Tactics

Prompt: Turn-based grid tactics · chibi fantasy

Claude Opus 5.5“翠野战线” · SVG ×90
GPT 6.1 Sol“AFTER THE STORM” · SVG ×19
GLM 5.3 flash“Tactics Grid Demo” · SVG ×22

Opus has the most classes, GPT made a disaster-rescue mission, and GLM has the most complete turn animations.

#22

Card Battler

Prompt: Card battler · painterly fantasy

Claude Opus 5.5“符石牌桌” · SVG ×32
GPT 6.1 Sol“HERBARIUM / The Copper Atelier” · SVG ×23
GLM 5.3 flash“Card Fantasy Duel” · SVG ×15

Opus adds effects when cards are played, GPT uses botanical-guide cards, and GLM has the largest card art.

#23

Backpack Battler

Prompt: Backpack-packing auto battler · painterly leather, wood and brass fantasy shop

Claude Opus 5.5“行囊杂货铺” · SVG ×45
GPT 6.1 Sol“The Wayfarer Packing Desk” · SVG ×22
GLM 5.3 flash“Backpack Battler” · SVG ×22

Opus jumps into battle once you finish packing, GPT’s gear affects the fight, and GLM’s items come in all shapes.

CH.05 Chapter 5 · Narrative & Atmosphere3 prompts

#24

Visual Novel

Prompt: Visual novel · Japanese cel-shaded anime

Claude Opus 5.5“放学后的观星约定” · SVG ×46
GPT 6.1 Sol“NORTH / NIGHT” · SVG ×19
GLM 5.3 flash“Visual Novel Demo” · SVG ×21

Opus and GLM both have expression variants, while GPT wrote a mystery set at a polar radio station.

#25

Silhouette Puzzle

Prompt: Side-scrolling atmospheric puzzle · backlit silhouettes

Claude Opus 5.5“琥珀暮林” · SVG ×45
GPT 6.1 Sol“The Polar Alignment” · SVG ×16
GLM 5.3 flash“Silhouette Atmos - Chapter I” · SVG ×22

Opus’s backlit forest is the most atmospheric, GPT chose a polar observatory, and GLM ends with a pillar of light.

#26

Top-Down Stealth

Prompt: Top-down stealth · moonlit East Asian courtyard

Claude Opus 5.5“月影庭院” · SVG ×56
GPT 6.1 Sol“PRISM COURIER” · SVG ×19
GLM 5.3 flash“Stealth Light - Night Garden” · SVG ×22

Opus switches lights on and off, GPT set it in a prism museum, and GLM’s guards raise the alarm.

Stats

Asset count: who drew the most?

Total SVG art assets each model generated across all 26 games. More isn’t necessarily better, but it says a lot about each model’s personality.

Takeaways

How each model plays it

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