I remember my cousin playing 2 very nice old games on pc.The one was an fps game where in the start you get to choose one of the four different (elemental maybe)players.They had the ability to change form to a more alien like with masks and weird uniforms.The second game is an open world adventure like rpg.The background as I remember was full of snow .The character was a strapping human. The enemies were big ones something like werewolves, I think.you had the choice to grab their dead head and throw it.I also remember a scene where he enters a cave and he closes the exit with a sliding.i think it was a boss fight after that.If you find these games I would be very gratefull!!!