While there is a native Linux version available (often utilizing FNA), many users on Steam are effectively using a customized runtime environment that Valve has curated. For the 1.4.4.9 release:
Midgame
Installing Terraria 1.4.4.9 MULTi9 on GNU Linux Native is a straightforward process: Terraria - 1.4.4.9 - MULTi9 - GNU Linux Native ...
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While there is a native Linux version available (often utilizing FNA), many users on Steam are effectively using a customized runtime environment that Valve has curated. For the 1.4.4.9 release:
Midgame
Installing Terraria 1.4.4.9 MULTi9 on GNU Linux Native is a straightforward process: