UFO Stalker is a free Android 2D grid-based single-player RPG with a unique twist. Developed by Spectre17, it takes place within an original alien ship setting. The story revolves around the hero who was captured by a UFO and must understand the principles of alien technology to escape.

Unlike traditional RPGs, there is no weapon or armor system. Instead, you have various gadgets that work on different principles, making it much more challenging. Each damage is lethal, and you avoid security droids instead of killing them. Each map is a logical puzzle that requires specific gadget combinations to solve, ranging from easy to extremely difficult.

The game features crafting and upgrading of gadgets using a variety of resources that help to progress your character. With 63 maps, 10+ security alien drone types, and hidden secrets with resources and schemes for gadget upgrades, UFO Stalker offers a unique and immersive experience. The system of hubs makes each map easily accessible, eliminating the need to wander and look for unexplored places.