Question: what are games you can play by yourself?
Answer: Arkham Horror: The Card Game. The Arkham Horror Files series' roots in scary stories of cosmic nightmares makes the games perfect for playing by yourself. ... 
Mage Knight. ... 
3. Friday. ... 
Scythe. ... 
Ganz Schön Clever. ... 
Gloomhaven. ... 
The 7th Continent. ... 
Robinson Crusoe: Adventures on the Cursed Island.