Downward

Exploring the atmospheric, otherworldly environments using a straightforward yet satisfying parkour system kept me thoroughly engaged and I think that's enough to give Downward Enhanced Edition a try, if you can grab it during a sale.

Downward is a first-person platform made by Caracal Games, where fun and frustration coexist at the same time.

Downward is not a perfect game, but its approach to the first-person action-platform environment works well and the graphics are great for a low budget production.