Experimental browser games that try something different
The browser can be more than a delivery system for familiar arcade formats. MPE-RA is a source-available RTS inspired by Red Alert and OpenRA, built with Rust and WebAssembly; Curvytron 2 makes curve-dodging a real-time multiplayer contest; Where You Left Me uses Gaussian Splatting for a walking experience; and Critical Window frames strategy around a sixteen-quarter AI competition.
Balatro Shop Replay
Replay a Balatro seed shop by shop to inspect its item queue and see how each reroll shifts what appears next.
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Ashes of Ulthar
js13kGames 2025 timed pixel resource-management game set in the village of Ulthar.
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Whiskers Witch Adventure
js13kGames 2025 3D action platformer about rescuing witches and smashing jack-o-lanterns.
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Non-Mewtonian Cat
js13kGames 2025 physics puzzle about a shape-changing cat, with keyboard, touch, and gamepad listed.
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Black Cat Squadron
js13kGames 2025 one-button flying shooter inspired by the Black Cat Squadron.
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Triska the Ninja Cat
js13kGames 2025 swinging platformer about connecting red points and collecting clovers.
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Witchcat
js13kGames 2025 desktop adventure that changes seasons to reshape map routes.
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Cat Survivors
js13kGames 2025 survival game with battle upgrades and a ten-minute target session.
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CLAWSTRIKE
fast cat action platformer with desktop and mobile support listed.
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PhotoLoop
A browser editing puzzle using only lasso, cut, copy, and paste tools.
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Walk It!
A browser rhythm game about arriving at the target on the final beat of a phrase.
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Caw Across Time
A browser clocktower puzzle about borrowing items from a future self and closing time loops.
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Mobia's Trip
A browser game using screen loops, firefly positioning, and momentum through geometric space.
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BOOTLOOP
A browser roguelike action game about forming circuit loops against virus enemies.
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KILLOVER
A browser action game where each round adds a hostile copy of a previous run.
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Circuit Breaker
A browser puzzle platformer about escaping a machine circuit.
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VoodLoop
A browser puzzle that places action cards into a repeating timeline.
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Night OClock
A browser mystery about retaining memories and items through one-minute death loops.
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Goop Snake ⭐️
A browser game about reshaping a self-crossing slime snake to reach a drain.
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Trickster's Table
Free collection of modern trick-taking games playable against AI opponents.
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Phive
Connection-based line strategy game with AI and friend-play modes.
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Drift
Full-screen canvas physics game with touch input and a mobile viewport.
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Llama Legends
Browser card-collection idle RPG; the source post describes it as free with no ads or microtransactions.
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MPE-RA
A source-available Red Alert-inspired browser RTS with a 100-level campaign, base building, touch controls, and WebAssembly.
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Curvytron 2
A free real-time multiplayer curve game with top-down 3D arenas, instant reconnection, and gamepad support.
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Critical Window
A sixteen-turn browser strategy game about the US–China AI race, uncertain alignment, and source-backed policy choices.
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Where You Left Me
A short browser walking experience built from streamed Gaussian splats, with music and English voice-over.
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What belongs here.
We use “experimental” for games with an unusual interaction, subject, or technical approach—not as a promise that every project suits every player or device. Compare session length, controls, language load, and listed devices in each review, then open the creator’s official page or browser build.