Tessera is a desktop library for game assets. It keeps every pack you collect whole, puts its license and where it came from on record, and copies assets into Unity, Godot or Unreal with the credits written for you.
The reason it exists is a question most of us cannot answer: what am I actually allowed to ship? You collect packs for years from bundles, jams, Discord links and stores, and the terms come loose from the files almost immediately. Tessera reads the license out of the pack where it can, keeps a page snapshot and an archive.org copy as proof of what the terms were on the day you got it, and puts anything unclear in Review rather than guessing.
A few things I decided for it:
Your library is ordinary folders. No database you cannot open, no format only Tessera reads. If it vanished tomorrow you would still have everything.
Hi Product Hunt. I make games on the side, and I kept hitting the same wall: a folder of 200 zips with names like characters_NEW(2).zip, and no idea which pack a model came from or whether I was allowed to ship it.
Tessera is what I built instead. It copies each download in exactly as it arrived, archives included, reads what is inside without unpacking, and takes the license and the source out of the pack's own files. Anything it cannot work out waits in a Review screen and stays out of every game until it is answered.
Then finding a piece is a search, and putting it in a game is one command: files land in the format your engine prefers, with their textures beside them, and CREDITS.md is written and rewritten for you. It also answers an MCP server on localhost, so an assistant can do the filing with the same rules, with the destructive tool groups off until you turn them on.
It runs on your own computer. No account, nothing uploaded, and your library stays ordinary folders you can open in Finder or Explorer at any time. Free, GPL-3.0.
Two honest notes: the builds are not signed with paid Apple or Microsoft certificates yet, so each system asks once the first time, and the install page shows exactly what to press. And it is made and tested by one person, so please tell me what breaks.
Happy to answer anything here all day.