Traditional
Mari0
Super Mario Bros. × Portal
A platforming classic meets portal-gun puzzles. A hand-built crossover, not an AI-generated game.
Author download · Not installation-testedThe mashup index
Worlds worth
putting together.
Real crossover projects. Original sources. No mystery downloads.
4 projects · Original sources checked October 9, 2026
Traditional
NucleDoom
Minecraft × Doom
Play classic Doom inside Minecraft through a server-side Fabric mod. An existing mod, not evidence of AI creation.
Author mod listing · Not installation-testedAI not stated
Minelock
Minecraft × Deadlock
Deadlock heroes, weapons and abilities in Minecraft, according to its Melty listing. Includes a Midtown world option.
Platform listing · Not installation-testedAI-assisted
Isaac Survivors
Vampire Survivors × The Binding of Isaac: Rebirth
Isaac joins Vampire Survivors with Tears and a Polyphemus evolution. The author explicitly credits Claude Code assistance.
Platform listing · Not installation-testedCard artwork is an original illustration of each pairing, not a gameplay screenshot.
Source-checked does not mean installation-tested.
We read the original project pages and record what they actually say. We have not installed these mods or audited their files. “AI-assisted” means the author explicitly discloses AI use; it is not a promise that AI can merge any two games. Traditional projects are labeled separately.
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