Cell to Singularity - Evolution Never Ends: Complete Guide

This guide covers how Cell to Singularity's idle loop works: Entropy and Ideas, rebooting for Metabits, the Reality Engine, Nanobots, side simulations, and Explore events. It also covers the big 2026 change, The Future expansion that is now in beta.

Researched September 2026, current as of the post-Reality Reboot build (patch 49.x) with The Future in open Steam beta. Live games change; check the linked sources if something differs.

Heads-up for returning players: The Reality Reboot overhaul (November 2025, built with Octocube Games) redesigned progression and removed the old speculative-future content. That content is coming back as The Future expansion, which went into beta on 1 September 2026. The beta also temporarily removes the old Mars content and moves Singularity further back in progression. If you are in the beta, your save gets converted, so back it up first.

Quick Start

  1. Click early, idle later. Clicking gives you Entropy for your first generators. Within minutes your generators out-earn your clicks, and from then on your main job is buying the right upgrades.
  2. Entropy runs Life, Ideas run Civilization. Entropy buys evolutionary generators and research nodes, from single cells up to humans. Once humans have intelligence you start earning Ideas, which fund the technology side (agriculture, industry, information tech and so on).
  3. Research nodes are the real progress. Generators give you income. Research nodes unlock the next chapter of life or tech and multiply what you already own. When you can afford a node, it is almost always worth more than another generator.
  4. Rebooting is the prestige. Restarting the simulation pays out Metabits and Knowledge. You spend those in the Reality Engine on permanent upgrades. Since Reality Reboot, you decide when to reboot.
  5. Get Nanobots working for you. Nanobots automatically buy generators and nodes for you. Reality Engine upgrades such as Nanobot Multibuy and Nanobot Autostart make them much better, and they save more clicking than anything else in the game.
  6. Darwinium is optional. Darwinium is the premium currency. The core simulation progresses fine without it, and free cubes come from events and redeem codes (Settings > Help > Redeem Code, entered while in the Primary Simulation).
  7. Play the side simulations for boosts. Mesozoic Valley (dinosaurs), The Beyond (astronomy), and the limited Explore events all give rewards. Explore events often give badges that speed up that event's simulation.
  8. Keep offline earnings in mind. Close the game with your best income running. Idle time pays.

The Core Loop Explained

Currencies at a glance

Currency Where it comes from What it buys
Entropy Clicking plus Life generators Life generators and evolution research nodes
Ideas Civilization generators (after humans) Technology generators and tech research nodes
Metabits Rebooting the simulation Reality Engine upgrades (permanent)
Knowledge Rebooting and progression Reality Engine upgrades (permanent)
Darwinium Events, codes, purchase Premium shop items and convenience
Mutagen Mutagen missions and reboots A secondary meta-currency (check its in-game tooltip)

Life (Entropy)

The Primary Simulation starts before life exists. You buy generators that produce Entropy, then unlock nodes that move evolution forward: single cells, multicellular life, fish, reptiles, mammals, primates, humans. The 2026 updates also added Mollusks and Crustaceans branches. Each new animal you unlock appears in the 3D garden, and most nodes come with a short science fact.

What to buy, in order of priority:

Civilization (Ideas)

When humans become intelligent, Ideas start flowing. The Civilization track runs through the ages of human technology. In 2026 it was extended with Scientific Revolution II and Industrial Revolution II. Follow the same priorities as Life: multiplier nodes first, new-era nodes second, generator levels last.

After The Future beta, the side panel is reorganised:

The side panel and missions

Missions give you short-term goals and rewards. The Future update reworks the mission system so progression feels more directed. If you are unsure what to do next, check the missions tab first.

Rebooting, Metabits and the Reality Engine

Rebooting is how you get meaningfully stronger. When you reboot, your simulation resets and you get Metabits and Knowledge to spend in the Reality Engine. That is the permanent upgrade tree, and at the Reality Reboot launch it had over 200 upgrades.

When to reboot: Reality Reboot removed the old fixed reboot points. The usual rule of thumb:

What to buy first in the Reality Engine (priority order):

  1. Production multipliers for Entropy and Ideas. They make everything faster.
  2. Nanobot upgrades. More intelligence, duration and speed, then Multibuy and Autostart. The mid-2026 Nanobots revamp made these the best quality-of-life upgrades in the game.
  3. Side-simulation fleets. In July 2026, Nanobots were expanded with Event Simulation Fleet, Mesozoic Simulation Fleet and Beyond Simulation Fleet. These let Nanobots work in Explore events, Mesozoic Valley and The Beyond. This was the first time Nanobots worked in The Beyond at all. If you already owned the old Side Simulation upgrade, you get all three instantly.
  4. Prediction Matrix nodes. These appear once you have The Future content unlocked in the beta.

Nanobots

Nanobots are little automation drones. While they run, they buy generators and research nodes for you. After the 2026 revamp:

To use them well, start them right after a reboot so they rush the early nodes while you watch. Save your manual attention for choosing when to reboot.

Side Simulations

Simulation Theme Why play it
Mesozoic Valley Dinosaur evolution with its own mechanics Open geodes to collect Trait Cards that upgrade its generators (check each card's tooltip for its exact effect). Has offline earnings.
The Beyond Astronomy, from the Sun outward Open stars for its own Trait Cards. Content ends at the edge of the observable universe with Beyond E30: Cosmic Horizons (2026), including the Observable Universe and Cosmic Microwave Background generators. Nanobots now work here.
Explore events Limited-time science themes Their own research nodes, generators, Quantum Charges, badges and trophies

Mesozoic Valley tips

The Beyond tips

Explore Events (2026)

Explore events are limited-time side simulations with their own garden. Each one has a set of research nodes, a chain of generators, a themed Quantum Charge (a special activatable boost), badges and a trophy node. Recent events:

Event Released Highlights
Explore: Atmosphere – Upper Bounds 2 July 2026 51 research nodes, six generators for the atmosphere's layers, the Lightning Quantum Charge, and the Cloud and Ozone Layer badges (5% and 10% event speed)
Explore: Pregnancy – Life Unfolding 24 August 2026 45 research nodes, ten generators from fertilization to birth, the Baby Bottle Quantum Charge, and the Labor Trophy Node. Has an in-game content warning and is optional.

Other events mentioned in 2026 patch notes include Explore: Cryptids. The developers ran an Explore Event Survey (closing 21 September 2026) to pick upcoming event topics.

Event tips:

The Future Expansion (Beta, September 2026)

Announced in the 30 July 2026 "Visions of the Future" dev diary and opened to Steam beta testers on 1 September 2026:

How to join on Steam: Right-click the game > Properties > Betas, enter the code cellsbetatest, click Check Code, then opt in. The developers say your save converts automatically and recommend a backup first. At the time of the announcement, the mobile beta was rolling out separately (TestFlight on iOS, a form on Android).

Common Mistakes to Avoid

Advanced Tips

FAQ

Is Cell to Singularity free on Steam? Yes. It is free-to-play with optional Darwinium purchases. It is also on iOS and Android.

Where did Mars go? If you are on The Future beta, the old Mars content has been temporarily removed and will return as part of a new Moon-to-Mars space arc. On the live build, check your version, since the beta will eventually become the live version.

Where did the Singularity go? I used to reach it quickly. In The Future, Singularity sits further back in progression, after the five visions. Reality Reboot also removed the old speculative-future content.

How do I enter a code? Settings (top right) > Help > Redeem Code. Enter it with no spaces while in the Primary Simulation.

When should I reboot? When the next milestone would take longer than replaying up to it with your new Reality Engine upgrades. Early on, reboot often. Later, check your Time Chamber boosts first.

What are Nanobots and how do I make them work in events? Nanobots are automated buyers upgraded in the Reality Engine. To use them outside the Primary Simulation, buy the Event, Mesozoic and Beyond Simulation Fleet upgrades.

Is the Pregnancy event safe for everyone? It has an in-game content warning for medical depictions of anatomy and fetal development, and taking part is optional.

Sources