Observe

Here is an excerpt from Observe's Steam description:

Forgotten in ominous rooms, you wander, you look and you solve. Collaborate with yourself to change the past, future and present by replaying your mistakes and creating new ones in this single-player puzzle game. Help your future self to push through, crack puzzles and explore the ethereal. Without yourself, you are left behind.

The game world consists of multiple worlds, each of which is made up of several interlinked rooms of which each contains a puzzle. As you solve, actions from previously completed rooms are replayed. Playthroughs of multiple rooms come together to overcome complex challenges. Thinking ahead to create valuable replays is crucial towards progress.

Solve puzzles using only your eyes. With your vision as the only tool at your disposal, watch as the world around you reacts to being observed.

Features:

• Collaborate with many parallel versions of yourself from the past.
• Multiple worlds with distinctive puzzle mechanics such as lasers, mirrors, conveyor belts and duplicators.
• A captivating story about learning from regret.