You can’t go wrong with bacon. Bacon Wars is a print and play combat oriented game.
board game
Oh, No, There Goes Tokyo
Oh, No, There Goes Tokyo is a free print and play game where each player defends his city block from the terrorizing Kaiju.
Arkham Investigator Paragraph Game
Arkham Investigator is a free paragraph based game that uses many of the same mechanics as the old Sherlock Holmes: Consulting detective game.
Zombie Enclave Solo Board Game
Zombie Enclave is a free print-and-play solo boardgame of the Zombie apocalypse.
(Your Name Here) and the Argonauts
(Your Name Here) and the Argonauts is a free solitaire print-and-play game
of adventures and legends set in Grecian mythology. You will take on the role of a hero set out to recover treasure, slay monsters, and find a place for yourself in the retelling of Greek myths. The game is played with a set of (initially) 30 cards that represent the monsters, treasures, and gods will become the tale of your adventure. This deck, and your character, will change and grow as you play more games, which is meant to reflect how tales become more embellished and outlandish each time they are told.