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Note: This Early Access game is not complete and may or may not change further. If you are not excited to play this game in its current state, then you should wait to see if the game progresses further in development. Learn more
I’ve just released Alpha17b, a performance hotfix for Alpha17. Steam users will get it automatically. This is build 0.17.1557.
When we made the targeting AI smarter in Alpha 17, we also made it harder on the CPU. Players in late game were seeing drastically reduced performance. Alpha17b optimizes this and several other things. There are no changes to gameplay - just optimization of what's there already.
This update will work with your existing saved games, XML-only mods and (hopefully) most or all code mods.
If for any reason you want to continue on the older version, you can set your Steam beta branch to 'alpha17a'.
Sorry for any disruption! We’re also hard at work on Alpha 18.
Alpha 17 - On the Road has been released! This version brings roads and rivers to the world, new world quests, new tools for modders, new combat tools, smarter AI, and rebalancings and adjustments across the whole design.
I'm afraid that this build is not compatible with saved games from previous versions, or mods from previous versions. However, you can continue to use the old version until you're ready to update. If you're on Steam, to continue using the old version, go to your Steam Library, right-click on RimWorld, click Properties. Open the Betas tab and use the drop-down menu to select the alpha16 version. Restart Steam to force an update.
If you downloaded the game DRM-free, you can update whenever you like by re-downloading from your existing download link. Your link is always the same and always gives the latest version.
In the old builds, balance problems meant that some exploit-y strategies did work and obviated some of the challenges in the game. Since those problems are now fixed, you may find the game a little bit more difficult. It wouldn't hurt to play at one notch lower difficulty to start with in Alpha 17. You can always increase the difficulty later, even during the game, through the options menu.
A summary of the changes in this alpha follows:
Roads and rivers
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