The best 2 player games

Two player games are becoming more and more popular as gamers are preferring to play with their friends over playing alone. There are many great examples of two player games ranging from web browsers like Fireboy and Watergirl to online multiplayer games like Fortnite or PUBG where two players can play with each other to accomplish a task or mess about. My personal favorite games that are two players include Pool, League of Legends, Fortnite, Ark Survival Evolved and even Bowman. What's yours?