RimWorld 1.7 brings Waylith to the optional Steam test branch
Ludeon is testing RimWorld 1.7 with Waylith on Steam’s unstable branch. The stable game remains on 1.6 in the announcement.
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Ludeon’s October 12 announcement makes RimWorld 1.7 available on Steam’s unstable branch with the Waylith engine. The studio reports performance gains in its own tests; stable remains on 1.6.
What this means for players
For an ongoing colony, our recommendation is to keep a separate save backup and record your mod list before trying the beta. Compare the same busy colony on your own setup instead of expecting the studio’s best benchmark result.
What remains to confirm
Reported improvements of two to four times are developer measurements, not guaranteed gains for every computer or mod collection.