Hallo,
Thank you for sharing your game. I’ve already saved its RATING;
1. verified: GAME due to observed in SUBMISSIONS LIST with keyphrase: Linux; notes: GAME to be also PLAYABLE as a downloadable on Windows and macOS Operating Systems; learns: web version to exist, after verifying application on Linux machine, where: received notification to upgrade Operating System (currently @LUBUNTU 20.04) to cause GLIBC to be > 2.31
2. observed: noticeable 3D graphics drawing techniques as that with DOOM#1 (PC, PS3) and Wolfenstein 3D (PC); notes: noticeable low Frames-Per-Second (FPS) with the viewed port shaking; verified: to be NOT due to health count; adds: at select TIMES, viewed port does NOT shake; appears: to occur when viewing a WALL;
3. observed: background music to appear to PLAY with noticeable skipping; notes: sound effects via PISTOL weapon to exist;
4. opted: to stop after observed viewed port shaking continued;
Thank you. Health!