Steam app 2963800 · updated 12 Sep 2026, 18:31 UTC
Dive into DrainSim and seize control of the floods! Clear the city's submerged streets, with a huge range of different tools from rakes to submersible pumps. Embrace the satisfaction of restoring the water flow. Become the city's hero, one drain at a time.
718 hourly samples, with the daily peak drawn over them. Weekends are shaded.
7 months, March 2026 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.
The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.
31 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.
31 days as the curve, each the highest figure that day. Behind it, 438 hourly samples from 13 Aug, which is as far back as the source keeps every hour. Weekends are shaded.
12 days as the curve, each the highest figure that day. Behind it, 280 hourly samples. Each dip is a night. Weekends are shaded.
DrainSim was released on 3 Mar, 2026.
| Language | Full audio |
|---|---|
| English | ● |
| German | |
| Japanese | |
| Czech | |
| Hungarian | |
| French | |
| Spanish - Spain | |
| Dutch | |
| Polish | |
| Russian | |
| Ukrainian | |
| Portuguese - Brazil | |
| Swedish | |
| Simplified Chinese |
A blank audio cell means full audio was not marked in the returned language list.
2 achievements in total.
30 developer announcements, Oct 2025 to Sep 2026 · times in UTC
DrainSim has sold over 200,000 copies! Thank you all so much for your continued support! The Level Editor is coming to the main branch soon!
codePeasAfter a long wait, the Level Editor is finally here! You can find the Level Editor in the main menu. Create your own levels, test them directly in DrainSim and upload them to the Steam Workshop for others to play. The Level Editor is still…
codePeasHow to play other peoples creations:subscribe to a level you like on the workshopstart your game and go to your garageclick on the icon on the top left click on workshop How to use the Editor: Water simulation settings and minimap capture.…
codePeasImproved Construction Site balance and progression Adjusted water inflow, drainage layout and water behavior Improved terrain shaping, slopes and pit layouts to better guide water flow Improved visibility of drainage progress in key areas…
Patch notesFixed voxel savegames on Convenience Store and Parking Garage Fixed missing mud on Convenience Store I know the new level is a hard one, it would be better for the games development if you keep that feedback to the discussion hub or the…
Patch notesDrainSim EA 0.3.1.06 Fixed cable height detection
Patch notesDrainSim EA 0.3.1.05 - Muddy Mess Update Finally giving the bucket a proper purpose. This update introduces the new digging and placing mechanic. Hold more buckets in your toolbar to fill them with dirt while digging, then place the dirt…
codePeasDrainSim EA 0.3.0.00 NEW LEVEL: Construction Site Fitting to the new digging mechanic, this level features deeper water levels and more difficult flooding situations than previous missions. The level is still in a rough state, so feedback…
Patch notesDrainSim EA 0.2.3.00 Added dig and place mechanic Buckets can now be filled with dirt Adjusted all existing levels to support the new digging mechanic Separate options for time challenge and leaderboards Improved navmesh performance on Farm…
Patch notesDrainSim EA 0.2.2.05 Updated leaderboard logic and improved cheat prevention Removed default trophy from garage Leaderboards now include basic anti-cheat measures. Invalid or impossible scores may be removed, and accounts may lose access to…
Patch notesDrainSim EA 0.2.2.03 – Leaderboards & Trophy Update Added leaderboards to the game, accessible in the completed missions UI in the garage Leaderboards reset each month Added leaderboard trophy shelf in the garage Trophies record the best…
codePeasDrainSim EA 0.2.0.02 – Welcome to Downtown Station Added new level - Downtown Station Included multiple gameplay, collision, water flow and performance adjustments for the new level Adjusted hose placement grid positions Improved shader…
codePeas🥳quick heads up, put the game on sale for a bit good time to grab it if you’ve been waitingworking on a new level right now, wanted to have it ready for this but didn’t quite make it in time 😅 more updates soon
codePeasDrainSim EA 0.1.7.06 – Performance, Generators & Voice Update Added Generator MK2 Replaced AI voice with human voice (intro and radio) Added and improved translations across all languages (including Simplified Chinese fixes) Improved…
codePeasDrainSim EA 0.1.6.11 Improved performance on Midtown Market Adjusted loading logic to reduce AMD crashes (may cause temporary water instability on first load - reloading fixes the issue) Fixed water clearing for vehicles to prevent standing…
Patch notesThis is only a condensed list.This one’s for the demo. Steam doesn’t give me a separate place to post demo updates,so it’s going here: Major performance improvements and reduced VRAM usage Improved water simulation stability and fixed…
Patch notesDrainSim EA 0.1.6.10 Fixed extending hose from placed pump ignoring tier Fixed replaying a mission not resetting start time
Patch notesDrainSim EA 0.1.6.09 Added new vehicles and vehicle shop Added Simplified Chinese and Swedish language support and improved localization Improved performance and reduced VRAM usage across multiple areas Fixed multiple savegame issues…
codePeasThis update focuses on hose interaction, placement, and usability improvements. DrainSim EA 0.1.5.05 Short interaction on inflatables now drags out a new hose Short interaction on pumps now drags out a new hose Adjusted barn water collision…
Patch notesDrainSim EA 0.1.5.0 Pump can now connect to placed inflatables and vice versa Made rating system future-proof for upcoming updates Fixed some Church actors blocking water Fixed rating sometimes not awarding 5 stars correctly Fixed leaks…
Patch notesFixed bucket animations sometimes stopping too early Removed slight left-right movement headbob Fixed strange vacuum bug when holding it to the side Disabled vacuum tool collision Improved interaction detection tolerance Fixed pump spawning…
Patch notesRemoved slight headbob while digging Removed slight headbob when stopping and accelerating Removed slight headbob during interactions and shoveling Lowered Farm barn brightness Fixed Church door blocking water Changed savegame logic for…
Patch notesHi everyone,I’ve pushed a small update to the DrainSim demo.There’s no new content in this update. I simply removed some unnecessary files and cleaned up a few things in the demo build.The demo is not updated to the current game version…
Patch notesRestricted Reset All Tools and Save From Usage in tutorial level Reset All Tools no longer removes tutorial tools Removed floating ball from tutorial Tutorial: added bigger water blocker for basement water Fixed inflatable pickup logic…
Patch notesDrainSim is finally in Early Access. 🥳I just want to say thank you to everyone who helped shape this game.To the playtesters who broke things, reported bugs, and pushed the mechanics harder than I ever could.To everyone who played the demo…
codePeasWith Early Access finally launching in just a few days on March 3rd 🥳, I’ve pushed a final demo update focused on polish, performance and overall feel in the demo levels: Tutorial Midtown Market This update doesn’t add more content, but it…
Patch notesHey everyone! Another quick patch focused on fixing translation issues, refining generator logic, and improving clarity around pump operation.⚙️ Fixes & ImprovementsFixed an issue with German translations not displaying correctly.Added…
Patch notesHey everyone! This small follow-up patch fixes some unexpected behavior from the last demo update and cleans up tool interactions and tutorial details.🧰 Fixes & ImprovementsFixed an issue where the vacuum could suck up water from meters…
Patch notesHey everyone! This update focuses on smoother interactions, movement polish, and overall performance improvements, plus new community translations and a few long-requested quality-of-life tweaks.🌍 Performance & OptimizationImproved VRAM…
Patch notesHey everyone! A lot of you asked for more transparency about what’s changing between updates — so from now on, every patch will come with clear notes like this one 👇 This update focuses on smoother performance, smarter water behavior, and…
Patch notesWhat Steam runs, and with what. Straight from the app configuration.
| Description | Executable | Arguments | Platform | |
|---|---|---|---|---|
| DX12 - Default | DrainSim.exe | -d3d12 | windows 64 | |
| DX11 - Old GPU - expect BUGS/ugly visuals | DrainSim.exe | -d3d11 | windows 64 |
The folders Steam Cloud syncs. The root is a token Steam uses for a location on your own machine, not a path this page can know.
| Root | Folder | Files |
|---|---|---|
WinAppDataLocal | DrainSim/Saved/SaveGames | *.sav |
WinAppDataLocal | DrainSim/Saved/SaveGames | *.exr |
It runs on public data and somebody's spare time.
https://paypal.me/KintaroPalPay[email protected]0x4d559C765AA8BFe336E36d5b76024926767eD38dTJtctWU9uetJaTBoSybd1RErW7n9duTKVG