Doomsday Diner System Requirements (PC, Windows)

Doomsday Diner is a Windows-only Steam game with a modest minimum spec: Windows 10 64-bit, 8 GB RAM, a GTX 1050-class GPU, and 2 GB of storage. The developer's recommended tier asks for Windows 11, 16 GB RAM, and — unusually for a game this size — an RTX 3090.

Official Transcribed verbatim from the Steam store listing on 2026-07-26.

Reading the requirements honestly

The gap between tiers is unusual. The minimum GPU (GTX 1050) and CPU (Core i3-2100T / FX 6100) describe a budget machine from years ago, while the recommended GPU is an RTX 3090 — flagship hardware. We can't tell you why the developer chose that number; we only report it. If your PC clears the minimum comfortably, the cheapest way to find out how the physics-heavy simulation actually runs for you is the free demo.

Steam Deck, macOS, Linux Official

As of 2026-07-26 the Steam page shows no Steam Deck compatibility rating — the game has not been marked Verified, Playable, or Unsupported. There are no macOS or Linux versions; the listing is Windows-only. If Valve assigns a Deck rating later, this page will be updated and the change logged on the updates page.

Download size

Steam lists 2 GB of available space for the full game. For comparison, the free demo on itch.io is roughly a 988 MB compressed download — details on the demo page.