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OpenLoco 25.10

Author: OpenLoco
Date: 10/10/2025
Size: 20 MB
License: Open Source
Requires: 11|10|8|7|macOS
Downloads: 3605 times

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OpenLoco is an Open Source re-implementation of Chris Sawyer's Locomotion, a construction and management simulation video game that simulates running a transport company.

OpenLoco is an open-source re-implementation of Chris Sawyer's Locomotion (CSL). CSL is the spiritual successor to Transport Tycoon, and OpenLoco aims to improve the game, similar to how OpenTTD enhanced Transport Tycoon and OpenRCT2 improved RollerCoaster Tycoon.

Chris Sawyer's Locomotion was initially written by Chris Sawyer in x86 assembly, building on top of his RollerCoaster Tycoon 2 engine. Much of the code is 1:1 with RollerCoaster Tycoon 2. However, the engine has changed substantially enough that OpenLoco currently does not share its codebase with OpenRCT2.

Recent implementation efforts have focussed on re-implementing the UI so that the data structures involved may be better understood. Once this is done, we hope the game logic will be easier to understand and implement.

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Version History for OpenLoco:
https://github.com/OpenLoco/OpenLoco/releases

Editor's Note:
You will likely get a warning from Chrome or Defender that this is an uncommon download. This is a common problem with new or unknown files of this type.

The Mac version hasn't been updated since 22.06.1

Screenshot for OpenLoco

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