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Nexus Primordial

Released

ThoglotDiscovered Oct 26, 2026

About the game

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.

Original Steam description

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?

Demo and release information

No demo is verified in the current check data. This does not mean the game has never had a demo; check its Steam page for current availability.

Steam demo, playtest and Early Access: what is the difference?

Information & artwork: Steam · Last checked UTC