My opinion:
If you want to fight your way through a difficult and very rewarding game, check Recon Control. You will need all your mental powers to strategize the best plan to eliminate your enemies while also help your soldiers to stay alive.
About the Game
Recon Control is a turn-based strategy and 2D platformer hybrid focused on combat. You play as a commander of the small special operations unit. Choose the right fighters for specific tasks, train them, buy equipment, and lead your unit through a set of missions to the final.
Key features:
Hardcore turn-based battles with plenty of interconnected game mechanics.
25 missions which are divided into 3 separate campaigns.
Skill tree with 50 abilities. Active, passive, and secret abilities can shape your fighters for your desired play style.
57 equipment items to choose from. Weapons, armor, explosives, picklocks, and more.
Ironman mode for experienced players or additional challenge during the second playthrough.