Platformer
Prompt: Side-scrolling platformer · bright cartoon
Opus has the richest layering, GPT goes for a storybook look, and GLM plays the smoothest.
Recorded live in Godot 4.7 · 100% AI-generated assets
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.
Prompt: Side-scrolling platformer · bright cartoon
Opus has the richest layering, GPT goes for a storybook look, and GLM plays the smoothest.
Prompt: Side-scrolling exploration action · dark gothic
Opus brings stained glass and candlelight, GPT a silhouetted moonlit night, and GLM a full ending sequence.
Prompt: Side-scrolling action adventure · 16-bit retro pixel art
Opus feels the most like an NES classic, GPT built a waterway puzzle, and GLM built a whole castle.
Prompt: Side-scrolling action · Chinese ink-wash painting
Opus’s sword energy is the most traditionally Chinese, GPT is light and elegant, and GLM uses the most negative space.
Prompt: Side-scrolling endless runner · flat vector with long shadows
Opus has the most power-ups, GPT turned it into mail delivery above the clouds, and GLM runs through a purple night city.
Prompt: Vertical shoot ’em up · sci-fi neon
Opus fills the screen with bullets, GPT goes for a space-comic style, and GLM includes a boss fight.
Prompt: Side-scrolling physics vehicle · vintage travel poster
Opus and GLM both went with vintage posters, while GPT drove straight onto the Moon.
Prompt: Casual match-3 · chibi desserts
Opus has the most polished candies, GPT the softest palette, and GLM the most satisfying combos.
Prompt: Casual catching game · hand-drawn notebook doodles
Opus drops the most items, GPT switched to catching seeds, and GLM has the cleanest lines.
Prompt: Falling-note rhythm game · pop idol stage
Opus’s idol actually dances, GPT moved the stage to the deep sea, and GLM has the flashiest hit effects.
Prompt: Idle clicker · starry magical desserts
Opus’s cake evolves, GPT made a solar-powered clock, and GLM’s numbers climb the fastest.
Prompt: Physics puzzle · paper-cut craft
Opus guides a little hedgehog home, GPT made an origami valley, and GLM uses paper-crane contraptions.
Prompt: Time-management cooking · warm food-toy cartoon
Opus’s customers have moods, GPT cooks in three steps, and GLM stacks burgers layer by layer.
Prompt: Farming · soft picture-book style
Opus has a whole farm, GPT a glass greenhouse, and GLM a scarecrow chasing off crows.
Prompt: Fishing · fresh watercolor vector (side cutaway)
Opus has the most beautiful underwater light shafts, GPT looks like a lakeside journal, and GLM’s fish leap out of the water.
Prompt: Factory automation · clean industrial cartoon (orthographic top-down)
Opus has the most complex pipelines, GPT uses verdigris gears, and GLM is the tidiest.
Prompt: Cutaway base management · retro-futuristic undersea base
Opus has the most rooms, GPT turned it into a dollhouse, and GLM has a submarine passing by.
Prompt: Cutaway mining sandbox · warm hand-drawn cartoon
Opus has the strongest cave lighting, GPT made it a grid puzzle, and GLM’s drill digs straight down.
Prompt: Tower defense · toy building blocks on a tabletop
Opus’s towers can be upgraded, GPT defends a coral reef, and GLM’s cannonball arcs are the easiest to read.
Prompt: Turn-based grid tactics · chibi fantasy
Opus has the most classes, GPT made a disaster-rescue mission, and GLM has the most complete turn animations.
Prompt: Card battler · painterly fantasy
Opus adds effects when cards are played, GPT uses botanical-guide cards, and GLM has the largest card art.
Prompt: Backpack-packing auto battler · painterly leather, wood and brass fantasy shop
Opus jumps into battle once you finish packing, GPT’s gear affects the fight, and GLM’s items come in all shapes.
Prompt: Visual novel · Japanese cel-shaded anime
Opus and GLM both have expression variants, while GPT wrote a mystery set at a polar radio station.
Prompt: Side-scrolling atmospheric puzzle · backlit silhouettes
Opus’s backlit forest is the most atmospheric, GPT chose a polar observatory, and GLM ends with a pillar of light.
Prompt: Top-down stealth · moonlit East Asian courtyard
Opus switches lights on and off, GPT set it in a prism museum, and GLM’s guards raise the alarm.
Stats
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