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These games are similar to Realistic Star System Generator ...
Fronds of Benevolence   - Duke DeCorticus is dying!
SYZYGY - Ashcan Edition   - weird science fantasy roleplaying
The Electrum Archive - Issue 01   - A Science Fantasy RPG Zine
Meteor   - Corporate Sci-Fi Tabletop RPG
Outward Bound   - A game of space exploration, inter-species cooperation and weird anomalies, based on the Four Points RPG System.
PLANETAR Vol. I - Lazurith B2   - A planet for sci-fi TTRPG games.
Gravity RIP   - A sci-fi racing TTRPG
Pocket Planet Fantasy   - A planetary system generator for sci-fi TTRPGs
ANTI-SISYPHUS 1   - An occasional zine for your old-school role-playing needs.
T-DEF   - A GMless mini-zine game where you pit your troopers against alien invaders!
So You Want To Be An Adventurer?   - A simple fantasy version of What's So Cool About Outer Space?
ANTI-SISYPHUS 2   - The second issue of an occasional zine for your old-school role-playing needs.
Realistic Star System Generator is similar to...
Quest: Science Fiction Edition   - Quest RPG for hard science fiction and modern-world games
NONLOCALITY   - A 2-page hard sci-fi RPG designed by a physicist!
60 Years in Space   - An extremely crunchy d6-based hard sci-fi table top roleplaying game.
Federation HR   - A party game about the hardest working team in space
A Good Day to Roll Hard   - A Die Hard TTRPG
Voidfarers   - A Hard Sci-Fi Game about a Community Suriving an Authoritarian Space Regime
What's So Tempting About the Dark Side?   - a #WSCAJam game about jedi, sith, and the force.
Dying Hard on Hardlight Station   - Die Hard meets Alien in this thrilling escape from a hijacked station, made for the Mothership Sci-Fi Horror RPG.
PDS Paper Miniatures   - Printable Baroque Science Fantasy miniatures, for your tabletop games.
Mages and Mooks or Spellballs: Magic Hates You, A Role-playing Game of Dealing with It   - A boutique ttrpg of hard magic.
Let's Steal A Spaceship! and Way To Crash Genius!   - Small adventures for "What's So Cool About Outer Space?"
DISH PIT WITCHES   - work hard. play gay. do magic.
If you like Night at the Galactic Grand Ball check out...
Cake By The Ocean   - Sex, experimentation, and eating cake.
Village Witch Post   - A postcard game for a witch writing letters about her new home.
I Know My God   - a solo journaling rpg about finding yourself
KISSING COMRADES   - 200 word LARP of anti-fascist makeouts
Mutants In the Night   - A Forged in the Dark table-top role playing game about finding
Recollection   - A game for finding love... and learning from it.
The Stars Whisper   - A LARP for 8 to 12 players that asks: what do stars talk about as they shine into the void of space?
Reunited and it Feels...   - A two-player RPG of lost relationships and public reunions.
Starlight   - A game about  finding your way home.
Here Is My Power Button   - A larp for 6 to 16 about human need and the AI identities that emerge from it
a ir bu r st   - a finding game for one to fifteen players
These Weird Breads Are Sad   - A card larp about not living up to your creative ideas
If you like EverDriven - One Page Diceless RPG check out...
T-DEF   - A GMless mini-zine game where you pit your troopers against alien invaders!
Ventureborn   - a rules-light flavour-light TTRPG
Come Home   - A three player GMless diceless storytelling TTRPG about finding home
A Weekend in the Country   - A murder mystery for one or more players
Layabouts and Degens   - A ttprg zine for doing very little.
Nighttide (WIP)   - A diceless game of gothic horror
Oh Maker   - A game about being androids discovering your identity and relationship with your creator
Gauge (WIP)   - A diceless RPG about survival
God Damn Them All   - A privateer journaling game
Characters to play with, write with, fight with, be friends with   - A set of diceless, storytelling rules for solving problems while roleplaying.
The Suburbs   - a diceless, GM-less  TTRPG about teens on the internet
Wickies   - A 2-player Wretched & Alone game about lighthouse keepers
If you like DECLIVITY check out...
Wandering Dreams   - A solo storytelling RPG zine of eldritch horror and exploring the unknown.
Come Home   - A three player GMless diceless storytelling TTRPG about finding home
The Cloister   - A two player storytelling game about the last hour of a long journey home
What's So Rotten About Zombies Defending An Ancient Temple   - Play as the rotten zombies defending your temple
Dungeon Janitor's Apprentice   - a two-player storytelling game
Kubrick: A Post Adaptation Game   - A 3-5 player game about exploring stories
Mind Crawler   - A solo/journaling RPG about dungeon crawling through your own mind.
Campfire   - the anthology horror storytelling game
Curse of the Alta Silva   - Can you survive the night?
Celestial Bodies, Orbital Mechanics   - A GMless three player roleplaying game about a diaspora's flight across the solar system
Compromise//Empire   - A 2-3 player GMless game about resisting Empire
52 Days on the Ice   - A GMless game for Two Players