UFO Stalker is a 2D grid-based, single-player & single-character dungeon crawler RPG with elements of stealth. Story takes place within original alien ship setting. Hero was captured by UFO when he was walking in park area after boring work week. To get relesead he needs to understand principles of alien technology and find out reasons of capturing.
You have various gadgets instead of weapon/armor system. Their principles of work is considerable different from principles used in common RPG games.
There is no health/damage principle. Each damage is lethal
You don't kill security droids but only avoid them
Each map is itself logical puzzle from very easy to extremely hard to pass
Each map puzzle may require specific gadgets combination to be solved
Craft and upgrade gadgets using variety of resources to make your character progressing.
63 maps, 10+ security alien drone types and a lot of hidden secrets with resources and schemes for gadgets upgrades
Each map is easily accessible using system of hubs. You don't need to wander looking for unexplored places