Patch opened to everyone today as a place to build, publish, and play browser games and mods. Run by New Save Labs, it connects the coding agent a creator already uses through the pch command line and an MCP server, including the chat in Patch Desktop. From there the agent can start a project, pull assets, check a release, test it on a Windows PC, and publish it. Players press Play once. Browser games run on patch.gg. Mods run in the Windows app, which installs the mod and its loader into a profile folder when the game allows it, so the game's own files stay untouched. The library behind that holds 50,000 open-source, game-ready assets, including 3D models, characters, textures, materials, and sound effects, each with a licence and a credit line. Rigging, animation, textures, and effects are available as single calls. A creator can take parts from any open game on Patch and combine them, or build a mod for a game already on their PC, including Steam titles. Projects are git repos. Open repos can be read and remixed by anyone on Patch, and a maker can choose a standard open licence, such as MIT or CC BY 4.0, if the work should be usable off the platform. Rehan Sheikh, the CEO, previously worked as an engineer at fal and as CTO of Remade AI. He is building Patch with Blendi, a co-founder who also came from fal and Remade, Christos Antonopoulos, previously CEO of Remade, and Nick Kao, founder of Comfy Deploy. Remade AI and Comfy Deploy were both YC companies, and fal later acquired Remade. Patch Desktop is on Windows now, with a Mac app on a waitlist.