More games like The Testing Chamber

Dead Cells is a roguelite, metroidvania inspired, action-platformer. You'll explore a sprawling, ever-changing castle... assuming you’re able to fight your way past its keepers in 2D souls-lite combat. No checkpoints. Kill, die, learn, repeat.

A Hat in Time is a cute-as-heck 3D platformer featuring a little girl who stitches hats for wicked powers! Freely explore giant worlds and recover Time Pieces to travel to new heights!

Release the Pressure with PowerWash Simulator! Wash away your worries with the soothing sounds of high-pressure water. Fire up your power washer and blast away every speck of dirt and grime you can find, all with the simple satisfaction of power-washing to a sparkling finish.

An idle game about making cookies! Originally released in 2013 on the web, and actively developed since then. This is the official version for Steam.

Start your own cult in a land of false prophets, venturing out into diverse and mysterious regions to build a loyal community of woodland Followers and spread your Word to become the one true cult.