Several projects released on GitHub in October have turned AI-assisted decompilation into playable native ports, according to their READMEs. Most were built largely by coding agents.
MacNativeGames (MIT, created October 17) runs a user's own copy of Zelda: Tears of the Kingdom natively on Apple Silicon Macs. It isn't an emulator: the game's ARM64 code runs directly, a small host answers calls to Switch services, and the NVN graphics layer is rebuilt on Metal 4.
The README tells users to have Claude Code or Codex do the build. It has been tested on an M4 MacBook Air and Mac mini at about 90 fps once shaders warm up. Users need their own XCI/NSP game files and prod.keys, and the repo had about 1,020 stars within 2 days.
portal2-recomp (GPL-3.0, October 27) lifts the Linux x86 version of Portal 2, about 125,000 functions, to C and runs it natively on ARM64 macOS and iPhone. It reaches 60 fps on an iPhone 15 Pro Max, and back-tapping the phone fires portals. The author says it was built in days with Claude Code and Codex.
Project Midas is a Windows and Linux port of GoldenEye built from the N64 decompilation; its README notes that "Claude was used." Project Helghast, a partly playable static recompilation of Killzone 3 from PS3 to PC, says AI agents do the hands-on work.
Agents are also adding multiplayer to single-player games. Co-op Anything (MIT, October 16) is a playbook of AGENTS.md files, skills and MCP setups that lets an agent reverse-engineer a game, build co-op, test it with in-game bots and ship it over Steam relay.
Why it matters: these projects show how much agents can now do, and also why publishers and the decompilation community are pushing back. Most of the ports require the player's own game files, but their legal status remains unsettled.
Caveat: performance figures and build claims come from each project's own README. AIGamer hasn't tested the ports.
Deus Ex Co-op reached version 0.2.0, with save and continue, on October 17. Co-op work on Fallout: New Vegas, Ocarina of Time, Dungeon Keeper and STALKER is in progress.
