Melty launches AI mashup launcher backed by Y Combinator, testing publisher IP controls

Stella Montis Inc. launched Melty publicly in early October 2026. The free Windows launcher installs community-made AI-assisted game mashups in one click. Its terms authorize downloading tools, modifying folders and copying game files. Publishers now face a funded platform that distributes mods built from their assets.

Founder David Miller runs Melty through San Francisco-based Stella Montis Inc.
The company sits in Y Combinator's fall 2026 batch.
Creators prompt coding agents such as Claude Code or Codex to build mashups.
One MindStudio test produced a playable Doom and Skyrim mashup in about one hour.
"Prompt to mashup, even while playing." - David Miller, Founder, Melty

Melty's terms seek to exclude liability for lost data, saves and account bans.
Total liability is capped at the greater of $100 or prior-year payments.
Creators grant an exclusive, worldwide, royalty-free distribution license.
That license runs while work is listed and for 12 months after removal.
Studios still own the underlying assets, a rights gap critics have raised.

Modder Wubbity said installer 1.0.33 contained LookLoot components recording gameplay and inputs.
Melty's October 12 privacy policy says recording covers only the launcher window.
The policy shares multiplayer hosts' IP addresses and ports with joining players.
Some antivirus tools flagged older or unofficial installers, possibly as false positives.

For Publishers & Developers: Add explicit AI-mashup and third-party-launcher prohibitions to EULAs and mod policies.
For Investors & VC: Add asset-rights clearance and anti-cheat ban exposure to diligence on AI-modding platforms.
For Service Vendors: Pitch IP-enforcement and takedown services to publishers whose franchises headline mashup libraries.