Entertainment · Gaming · 1 hr ago
RimWorld moves to its own engine, with faster performance and saves intact
RimWorld is moving from Unity to Waylith, an engine built by its developer, Ludeon Studios.
The change is part of update 1.7, which the studio says keeps the game looking and playing the same.
Ludeon says performance improved by two to four times in its tests, including faster loading and gameplay.
Existing saves and most community mods still work with the new version, and saves can also be used again in version 1.6.
The update is available to test on Steam’s beta branch, though players have reported higher memory use.
Ludeon warns that computers more than 10 years old may not run version 1.7.
The studio says it is also working on another game using Waylith, but has not shared details.
Ludeon Studios is moving RimWorld from Unity to its own Waylith Engine in update 1.7.
The studio says performance improved by 2–4 times in its tests, while the game looks and plays the same.
Saves from version 1.6 will work in 1.7, and 1.7 saves can also be used in 1.6.
The update is available to test on Steam’s beta branch, and most mods are expected to keep working.
Ludeon cautions that version 1.7 may not run on PCs more than 10 years old.
- Who
- Ludeon Studios, developer of RimWorld.
- What
- The studio is moving the game from Unity to its in-house Waylith Engine in update 1.7.
- When
- Update 1.7 is available to test on the beta branch; an official release date is not stated.
- Where
- On Steam’s beta branch.
- Why
- Not stated.
This story does not have two clearly opposing sides.
Rock Paper Shotgun reported Ludeon Studios’ announcement of the move to Waylith in update 1.7.
PC Gamer reported that update 1.7 was available on the unstable beta branch.
- Game
- RimWorld
- Developer
- Ludeon Studios
- New engine
- Waylith Engine
- Update
- Version 1.7
- Tested performance gain
- 2–4 times
- Modpack load time
- 1,500 mods went from 14 minutes to 6 minutes in Ludeon’s example
What people are saying
We’re announcing update 1.7, which moves RimWorld from Unity to the Waylith Engine, our own in-house engine built by Ludeon Studios.
The game looks and plays exactly the same, but in our tests performance is improved by 2-4x.
Your 1.6 savegames will load on 1.7, and 1.7 saves also work if you go back to 1.6.
Stable 120 fps and 900 [ticks per second]. Normally I have at max speed 60/700ish











