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Games like Open World RPG

12 short lo-fi sci-fi RPGs
Rules Light Grim Dark Fantasy RPG
A game about a superhero, a supervillain, and the city they share.
Camp counselors protect their wards from a nightmare monster in this GMless horror RPG.
The Other world's favourite fantasy RPG
Peace. Kids playing in mech wreckage. A ghost. One last journey to find a final resting place.
A tabletop world-building game about places over time
6e GMless
You don't need a Game Master
Science-Fantasy Roleplaying In A Universe Ruled By Death
A rules-light pen & paper RPG 
about monster hunters in Meiji Japan.
Spellcasters engage in games of magical bargaining in order to cast spells that aid their kingdom.
a letterwriting collage game
a game about seeking and finding in the woods of Salem
A Micro Skirmish Game set in space for 2-4 Players
A 2 player storytelling game about defiance and control
A Community Driven Basic TCG
Cyberpunk pamphlet rpg for one-shot sessions
Titanfall with a skosh of Destiny in a rules-light TTRPG
This is what it looks like.
A tiny game to paste in the front of your favorite notebook so you can carry the galaxy around with you.