Overview
Summary
Forge a universe from nothing to transcendence. Tune 6 physical constants, master the quantum Observer Effect, and prestige through endless cosmic layers. A deep, fully deterministic idle game, no microtransactions.
Description
About This Game
NEXUS PRIMORDIAL
You are a cosmic consciousness, forging a universe from before time. Accumulate energy, bend the fundamental laws of physics, and guide reality from the empty Void all the way to Transcendence — then collapse it in a Big Crunch and begin again, more powerful than before.
Tune the laws of reality
Six Universal Constants — Gravity, Vacuum Energy, Planck, Fine Structure, Arrow of Time and Chaos — apply to your entire universe at once. Every setting has cascading positive AND negative effects. There is no single "best" build: the challenge is finding the balance that fits your strategy.
The Observer Effect — no RNG, ever
You can actively observe only ONE of the 7 eras at a time. Unobserved eras enter quantum superposition and release bonuses on a fixed timer — 100% deterministic and guaranteed. No loot-box luck, no bad streaks: every reward is earned, never random.
7 eras to awaken
Void → Matter → Stars → Worlds → Life → Intelligence → Transcendence. Each era produces its own resource, has a unique Trait, and feeds the next through inter-era synergies. Neglect nothing — your earliest eras keep boosting your entire universe to the very end.
Prestige without end
Big Crunch — collapse the universe for permanent Cosmic Relics
Relics Tree — 16 upgrades across 4 branches, including full automation
The Forge — 4 Primordial Laws that rewrite the rules
The Beyond — climb 3 Rungs of Ascension and become the Demiurge
The Great Spiral — fold finished universes into Genesis Seeds for permanent, endless growth
Built to respect your time
Progresses on its own — up to 24h of offline catch-up
Era Mastery and a Cosmic Research tree that survive every reset
Optional automation: let the universe run itself
81 achievements to chase
A premium experience
One-time purchase — no microtransactions, no ads, no energy timers
Fully playable in 7 languages: English, French, German, Spanish, Russian, Simplified Chinese, Brazilian Portuguese
From a single fluctuation in the dark to the birth of cosmic consciousness — the Spiral is waiting. How far will you take it?
