Drive like Hell is a free 18 card print and play game about outrunning the Devil. It was a finalist in a 2020 18 card game design challenge.
fantasy
Return to Lilliput 2.0 Battling Bigguns
Return to Lilliput 2.0 is a set of rules by Walt O’Hara in which, twenty years after Gulliver, a band of pirates arrives at Lilliput.
Mobius: Sonic The Hedgehog Wargames Rules
Mobius is a set of free wargames rules for game set in the universe of Archie Comics’ Sonic The Hedgehog series.
Update: Mobius now is in its second edition.
Twilight Small Scale Skirmish Rules
Hasslefree Miniatures has a trial set of their Twilight Small Scale Skirmish miniatures rules.
Battle of Ayrene Board Game
The Battle of Ayrene is a free print and play board game featuring a battle between dwarves and elves.