If you’re an XCOM fan and you have Enemy Within for the PC, then I recommend grabbing the Long War mod.
This is the animal they chose to represent Satan.
The Father of Lies
Just think about that for a moment.
Avadon 1 & 2
Avernum 1-6 + Blades of Avernum
IL-2 Strumovik: 1946
Eschalon: Book 1
Magrunner: Dark Pulse
Omerta: City of Gangsters
Still Life 2
Fallout: New Vegas - Dead Money and Courier’s Stash DLCs
Risk of Rain
One Finger Death Punch
The Stanley Parable
Adventures of Shuggy
This is advice I am now taking to heart for both GMing and my adventure stories.