What your first sessions involve: orders on a timer, Franks and tips, surviving the first week, and the three official upgrade tracks.
Read: Getting Started →Unofficial · Source-first · English
Doomsday Diner Wiki & Guides
This is a fan-run wiki for Doomsday Diner, the post-apocalyptic hot dog diner sim from Space Rock Games, released on Steam on July 23, 2026. You cook, you pour coffee, you fight off bandits, and you mop up afterwards — and this site documents how all of that works, using only facts we can trace to an official source.
New here? Start with the beginner guide, browse all 23 achievements, or check the PC requirements before buying. There is also a free demo if you want to try the game first.
The Last Diner Standing
Everything here is from the official Steam listing and publisher page. Official
The premise, in the developer's framing: hot dogs are cheap and life is cheaper. You run the last diner still operating after the end of the world. Orders come in with deadlines, the controls are physics-based, and bandits show up to take your earnings. Between rushes you clean the tables — and, when the fighting goes badly for your visitors, the bodies too.
Start Here
The full loop in one page — cooking, combat, and cleaning — and how the three systems pull against each other.
Read: Gameplay →Every Steam achievement with its official description. Hidden ones are marked as undisclosed, not guessed.
Read: Achievements →System Guides
Order deadlines, the burnt/raw/jawbreaker failure states, sauces, and the caffeinated side of the menu.
Read: Cooking →
Bandits raid the diner and steal tips. What official sources say about fighting back — including the Hot Sauce upgrade.
Read: Combat →
Tables and bodies both need clearing. What cleaning covers and what we still need to verify in the release build.
Read: Cleaning →Trailer, Screenshots & Media
Launch Trailer
Watch the launch trailer, teasers, and all official screenshots.
Watch on Steam ↗ 
Free Demo
Play it yourself — the developer hosts a free Windows demo
(~988 MB).
Download on itch.io ↗ 
Publisher on YouTube
UNIKAT Label's channel carries the trailers and gameplay teasers.
Open YouTube ↗ Thumbnails are official game media, © Space Rock Games Limited — see the copyright notice. Links open external sites.
Quick Facts & Reference
Release date, developer and publisher credits, launch price, and every official link in one place.
Read: Release Date →Official Windows minimum and recommended specs from the Steam listing, plus Steam Deck status.
Read: System Requirements →Price, platforms, multiplayer, languages, VR — short answers with the source behind each one.
Read: FAQ →How This Wiki Verifies Facts
Small game, fresh release, no other wiki — which makes it tempting to fill gaps with guesses. We don't. Every claim on this site carries one of three evidence states:
- Official — stated by Space Rock Games, UNIKAT Label, or the game's own store listing.
- Official platform data — Steam platform data such as achievement names and descriptions, always shown with a retrieval date.
- Needs release-build verification — plausible but not yet confirmed against the release build. We say so instead of pretending.
Anything we can't support, we leave out — there are no invented recipes, upgrade prices, or "hidden achievement solutions" here. The full rules are in our editorial policy, and every reference we use is listed with its retrieval date on the sources page. Found an error? The contact page explains how to get it corrected.