Hey! Gotta an error trying in Ubuntu 18.10. Here's the command line output. I tried various resolutions and graphics settings but still got core dump.
Set current directory to /home/jason/Downloads/linuxgamejam2019/alien-abduction-linux/alien-abduction
Found path: /home/jason/Downloads/linuxgamejam2019/alien-abduction-linux/alien-abduction/alienabduction.x86_64
Mono path[0] = '/home/jason/Downloads/linuxgamejam2019/alien-abduction-linux/alien-abduction/alienabduction_Data/Managed'
Mono config path = '/home/jason/Downloads/linuxgamejam2019/alien-abduction-linux/alien-abduction/alienabduction_Data/MonoBleedingEdge/etc'
Preloaded 'ScreenSelector.so'
Display 0 'Acer XF240H 24"': 1680x1050 (primary device).
Display 1 'VX2025wm 20"': 1680x1050 (secondary device).
Logging to /home/jason/.config/unity3d/Editor/Player.log
Aborted (core dumped)