Why is this fix in older versions (like mesa 13.0) but not newer ones? Mesa 18.2.2 on Ubuntu 18.10 (cosmic) still needs manually patching. And upstream version 19 still excludes this fix. btw: I can confirm this bug is still present in Ubuntu 18.10 and the fix from [1] works fine. Without the fix xcom crashes right after the intro, after applying the patch I can play the game. [1] https://cgit.freedesktop.org/mesa/mesa/commit/?id=6dc96de303290e8d1fc294da478c4f370be98dea