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Rimworld is moving to the Waylith Engine
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this post was submitted on 12 Oct 2026
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They could just support old CPU architectures. But they decided against it. That's sad. It wouldn't have been expensive at all. Surely the game would be slower on these architectures, but at least it would run.
Apparently, it actually has to do with Vulkan support, which makes this more of a GPU issue. Vulkan released in 2016, and while it was backported to many earlier GPUs at the time, this wasn't universally successful, hence the 10 year disclaimer. Still, building on Vulkan is a good move, so this seems entirely reasonable to me.
Even if all that wasn't the case though, "[older hardware support] wouldn't have been expensive at all" is a baseless claim.
I see, that is reasonable. And then backporting to older GPUs would actually be expensive.
That's interesting. If they're conservative with Vulkan feature requirements, I wouldn't be surprised to see it run on Linux with an older AMD GPU. A surprising number of old models are supported by the driver.
The very next sentence is
Doesn't sound like they decided against it.
Probably gauging the extent of older archicetures among the players. To me it sounds like they didn't deem it worth the effort.
On a side note, I'd expect Steam to provide developers with a stat about what PC configs are the most common in that particular player base, like they do it with their surveys.