After being sent to the bunker for a routine checkup things go horribly wrong when the attack alarm sounds and you have no choice but to lockdown the bunker in order to survive.

Lockdown Island is a survival horror game set in a world overrun by monsters where you, the player must escape by maintaining and upgrading your bunker while you collect all of the ship pieces you’ll need to escape the island.

https://tabby-cat-nya.itch.io/lockdown-island