Serious Sam: The Second Encounter

A first—person shooter dedicated to the adventures of Serious Sam, an Earth soldier with a special talent for destroying alien monsters. Armed with a grenade launcher, a minigun, a flamethrower and a chainsaw, he cuts, explodes and shoots through the carcasses of all the aliens who are involved in the destruction of his home planet. Interestingly, the game still looks great nowadays — be sure to install the HD version, go through the story and find all the secrets.