I often miss certain information in reviews. Therefore I post it here for people like me, who need it quick and easy.

Playtime: ~20 hrs.
Levels: 17 - big and beautiful - linear
Backtracking between levels: no
Secrets: yes
Achievements: yes
Unlockables: few
Collectables: no
Replayability: 3-4 times
Sense of wonder: some


Edit: This is for Shadow Warrior 2013