Assassin's Creed

A game made by Ubisoft.

You play in the middle ages as an assassin in a badass white robe and a hidden blade, killing guards and your target, trying to make sense of their plans.

Has a sequel, set in Renaissance Italy, with a new character. Has two hidden blades and can operate firearms.

DYOS references

In the Battle of Chiron, Stylesrj's character dressed up as Altaïr from the first game and used his techniques of Blending to sneak past Enclave guards so he could stab them by surprise.

Surprisingly, it actually worked quite well.