Need to jam Subsea War
Got the basic stealth factors in: Bouncing trail of the sonar ping, the enemy becomes visible as the player comes closer.

Basic gameplay in
However, there is no HUD, no AI, no battle, no winning/loosing scenes, …. Therefore, I decide to move this to jam, just to want to see the end of this project, even though I’m not really sure I’ll have time tomorrow, since… it’s Monday 
The current version can be seen at: https://sntran.github.io/Subsea-War/dist/index.html