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ZUSI 3 - Aerosoft Edition
Zusi 3 Aerosoft Edition is a train simulation for PCs, the professional version of which is also being used in railway companies for engine driver training purposes.
What players say
Steam review score and the most-helpful voices, which may include critical ones. Score via SteamSpy as of 2026-05-14.
“Probably the best train simulator I've played with very little competition.”
— a player, Steam review · 13 hrs played“Graphics are overrated.”
— a player, Steam review · 111 hrs played“Installed this today after buying it a while ago. It installed a dodgy version of .NET and old directX that has broken my PC. Best thing is windows restore can't get rid of it. Great. Looks like I am rebuilding my PC.”
— a player, Steam review · 0 hrs playedPlayer activity
Monthly average concurrent players. Live count fetched 2026-08-02 19:54 UTC · history via SteamCharts.
Latest official news
Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.
Patch 3.5.13.0 Live Now!
ZusiSim.exe : 3.5.12.0 F Fixed animation errors Ä Recursion depth count during route search no longer takes ETCS/LZB-Bk into account N Turn maneuvers are only executed when the risk level is set to 0
ZUSI 3 | Update 3.5.12.0 | Out Now
Check the entire changelog below. Changelog: ZusiSim.exe : 3.5.11.0 N Timetable allows specifying changes to train characteristics N Additional timetable entry types Ä Preparation for National Values
Update 3.5.11.0
Please note, that Windows 10 or 11 is now mandatory! Windows ARM is also supported. This update only includes minor fixes. Did you know, ZUSI 3 now features 2200km of routes and more than 300 vehicles
Update 3.5.10.6 Patch Notes
- .NET8 32-bit and 64-bit Framework now automatically installs upon launch - F Vehicles with R replenishment from the HBL now fall back to HL replenishment at low HBL pressure - F “Delay route” depend
!.NET8 Framework Required!: Augsburg-Donauwörth and Kassel-Bebra route project
This update requires the new .NET8 Framework for Windows, so if you don't have it installed already, please install it from here: * Download Zusi x86 32bit https://dotnet.microsoft.com/en-us/download/
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Screenshots
Official Steam store screenshots — click any shot to enlarge.
Facts & details
From the Steam store record, snapshot 2026-05-14.
| Genres | Casual, Simulation |
| Player tags | Simulation · Casual · Trains · Realistic · Singleplayer · Driving · Sandbox · Relaxing · Moddable · Atmospheric · First-Person · Building (SteamSpy community voting) |
| Features | Single-player · Family Sharing |
| Languages | German, English |
| Estimated owners | 20,000 – 50,000 (SteamSpy) |
Minimum system requirements (PC)
Minimum: OS: Windows 10, 11 or ARM Processor: Dual Core CPU with 2.8 GHz Memory: 2 GB RAM Graphics: 1 GB VRAM Storage: 11 GB available space Sound Card: Yes