Trap Them - Sniper Edition (Steam key/Region free).

http://store.steampowered.com/app/407150/
Trap Them - Sniper Edition is a puzzle shooter alternative to Trap Them with new caves to explore. Equipped with a sniper rifle and a remote-controlled crystal collector you take the role of a sniper. Collect all the crystals without getting caught by the RoboTTech robots while exploring the depths of the mountain. Be smart about shooting down the environment to shape it to your needs and guide the crystal collector safely through the caves.

Features:
- smooth 60fps and clockwork perfect game mechanics
- deliberately designed for keyboard + mouse input

- innovative block physics
- wide variety of challenges (puzzle, action, mixed)
- multiple solutions rewarding player´s creativity
- extremely challenging puzzles in the later stages of the game
- 90+ caves to explore