Submarine Sabotage

In this game, you play as a military person whose submarine is under attack by poisonous gas. Trapped in the airlock, there's nothing you can do but wait until it subsides and hope your friends and crewmates are okay.

This game is compact and has neat and tidy implementation and puzzles. There are mechanisms and locks and keys and some clever puzzle solutions.

This has a lot more twists and turns and is darker than usual for a Garry Francis game, and I liked it. It was polished, descriptive, and the interactivity worked well.

The only drawback to me was that I kept getting this message after I left the command area and returned:

[PunyInform error: 3]
[PunyInform error: 3]
[PunyInform error: 3]

I did have to use hints once, but the solution was reasonable.