Rimworld is one of my favorite colony sims of all time, and the actual Rimworld system requirements are so accessible that most gaming laptops and PCs should have no issues getting the game to run. However, start packing on the DLCs or loading up some of the community's mods en masse and you'll encounter a CPU nightmare.
If, however, you're only interested in the vanilla Rimworld experience, the game runs incredibly well on old hardware, even with the inclusion of the Odyssey, Biotech, Anomaly, Royalty, and Ideology DLC packs. As a long-time player, I would, however, recommend checking out one of the processors on our buying guides for the best gaming CPU if you want to get the most out of the game. A good CPU isn't as necessary since multi-threading was added to the game in the 1.6 update, but the game can still put a huge demand on your processor once your colony reaches a considerable size, or you use a lot of the best Rimworld mods.
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While Dwarf Fortress is probably the most significant progenitor of the base-building colony sim, Rimworld certainly deserves similar recognition. Built by Tynan Sylvester and Ludeon Studios, it helped to define the unique blend of management and survival games that has given us other hits such as Oxygen Not Included and Frostpunk. Already rated 97% positive by Steam users, it's now set a new record player count on the Valve store as its just-launched spacefaring expansion Rimworld Odyssey takes us into orbit for the first time.
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If you've never played Rimworld, it's a hybrid and monstrous mix of sandbox games, spontaneous stories, and tough survival, fueled by warped twists and turns. Set in the outer fringes of space, where chaos breeds even more chaos, Ludeon's colony sim is already endlessly replayable, and now it's gotten even bigger with the new Odyssey DLC. If you want to give it a shot, even though it's only just been released you can already get Rimworld Odyssey at a big discount.
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