Omega Protocol vs The UnderGrowth
Price, ratings, monetisation and update history for both games, side by side — with what reviewers say about each.
Omega Protocol
An emergency AI tasked with reversing universal heat death and restarting the Big Bang. You must generate heat, build a cosmic factory, and use the remnants of past civilizations as fuel to power the Omega Engine.
- Reverse universal heat death
- Restart the Big Bang
- Generate initial heat
- Build a cosmic factory
- Dismantle past civilizations
- Use memories as fuel
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The universe has died. Entropy has won. You are "The Omega Protocol", an emergency artificial intelligence designed to reverse heat death and restart the Big Bang. Starting from absolute zero (0 Kelvin), you must generate the first unit of heat by violating thermodynamics, build a cosmic factory, dismantle the last vestiges of previous civilizations, and burn their memories as fuel to power the Omega Engine.
The UnderGrowth
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Deep beneath the surface, a living network stirs. You are the cultivator — tap to grow, produce to expand, and unlock the hidden species of the underground. The UnderGrowth is an idle clicker built around the slow, satisfying rhythm of fungal growth. Tap to generate mycelium, watch your production tick upward, and make strategic choices about when to prestige and how to spend your hard-earned spores. GROW YOUR NETWORK Tap the screen to produce mycelium and build your underground operation. Upgrade your production rate and watch your numbers climb — even while you're away. UNLOCK RARE SPECIES Discover and collect a variety of unique underground species, each with its own look and lore. Watch your ecosystem come to life as your collection grows. PRESTIGE & EVOLVE When the time is right, reset your progress and carry forward bonus spores that make each run more powerful than the last. Every prestige brings new potential. BOOST YOUR OPERATION Earn temporary boosts through rewarded ads — double your production for an hour, multiply your tap power, or claim an instant burst of progress. For players who want a permanent edge, the Shop offers one-time upgrades that stay with you forever. BUILT FOR IDLE PLAY Your mycelium keeps growing whether you're actively tapping or not. Check back, collect your haul, and keep expanding. No energy timers. No pay-to-win walls. Just the quiet satisfaction of watching something grow.
Screenshots
Verdict
The clearest difference is in-app purchases: Omega Protocol at none against The UnderGrowth's 2. Omega Protocol also leads on ads (none vs shown). The UnderGrowth's advantage is update cadence (every 5 days vs every 2 weeks) and iOS requirement (13.0 vs 16.4). On price and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. The UnderGrowth sells 2 one-off in-app purchases. Omega Protocol asks for nothing beyond the download.
Omega Protocol ships an update every 2 weeks, The UnderGrowth every 5 days. The most recent releases landed on October 23, 2026 and October 25, 2026 respectively.
| Parameter | Omega Protocol | The UnderGrowth |
|---|---|---|
| Price | Free | Free |
| Rating | 4.0 (8 ratings) — better | — |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 8 — better | — |
| Update frequency | Every 2 weeks | Every 5 days — better |
| Ads | No — better | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.4 | 13.0 — better |
| Further details — not scored | ||
| Size | 43 MB | 26 MB |
| Age rating | 12+ | 4+ |
| Developer | Zona de Ficción | Ehren Davis |
In-app purchases
Omega Protocol
No in-app purchases
The UnderGrowth
- 10× Click Power$0.99
- 2× Production Boost$0.99
Questions
Is Omega Protocol free?
Is The UnderGrowth free?
Do Omega Protocol or The UnderGrowth have ads?
Which is updated more often, Omega Protocol or The UnderGrowth?
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