Narrative-first RPG storytelling platform for building branching adventures and running real-time multiplayer sessions
A hard sci-fi idle game evolving from the Big Bang to an interstellar civilization
Stage
Startup
Not given
Founded
2026
Not given
Based in
IT
Not given
Pricing model
Not given
Freemium
Pricing
Free Account (freemium tier); Minstrel €7.99/month; Storyteller €12.99/month; Master Bard €17.99/month. Only the Game Master subscribes; players play free.
Free with no ads; optional Supporter: $2.99/mo, $19.99/yr, or $29.99 lifetime; time crystal packs: $1.99 (Skip a night), $4.99 (Skip a wall), $9.99 (Skip a week)
Key features
Build branching adventures with scenes and branching paths
Create characters, NPCs, and locations
Design maps and combat encounters
Real-time multiplayer sessions with no installation required
Projection mode for shared screens
Adventure marketplace to browse and purchase adventures
Panoramic scene exploration and interactive maps
Dice rolling and collaborative narrative tools
Ready-to-play official adventures designed to start in 30 minutes
13.8 billion year cosmic timeline from Big Bang to interstellar civilization
118 sourced research cards with scientific citations
12 game eras spanning Cosmos, Life and Civilization
16 different endings
12 civilization channels inspired by science fiction and real concepts
Playable on phone, desktop and iPad with cloud save sync
Installable on phone home screen for offline play
No ads and completely free to play
1,400+ nodes each grounded in real science with sources
Physics-accurate simulation where 1 light-year equals 1 real hour
What makes it different
Designed specifically by Game Masters for Game Masters
Play immediately with minimal preparation (as little as 30 minutes)
Focus on narrative and social connection over configuration
All adventure content in one unified platform with no scattered notes or tool-switching
Players can join instantly from browser without installation or account creation
Every scientific claim cites real sources with year, researcher and publication
Hard sci-fi design where physics and signal times follow real scientific laws
Completely free with no ads, payment optional and never pay-to-win
Invented game lore clearly separated and labeled apart from real science basis
Curated collection of 24+ open-source astronomy, physics and biology projects
Narrantium
Cosmos Era