# Reactor 2: Idle Nuclear Tycoon — Energy Production Simulator

> Idle tycoon simulator for building and managing a city's energy empire. (iPhone/iPad app by Robert Grzybek.)

- Source: https://appshunter.io/ios/app/reactor-2-idle-nuclear-tycoon/id6761125316 (this page in markdown: same URL + `.md`)
- Developer: [Robert Grzybek](https://appshunter.io/developer/1016399321)
- Category: Games, Simulation, Strategy
- Price: Free with in-app purchases
- Rating: 4.90/5 from 30 App Store ratings · 21 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 238 MB
- Languages: British English, Czech, Danish, Dutch, Finnish, French (France), German (Germany), Hungarian, Indonesian, Italian and 16 more
- Released: 2026-07-16
- Data updated: 2026-08-31
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/reactor-2-idle-nuclear-tycoon/id6761125316/reviews.md

## What is Reactor 2?

Build a power empire where every tile matters.

Reactor 2 expands the original idle tycoon with a living city, island progression, deeper quests, and new late-game technology. Start with a wind turbine, produce heat, turn it into electricity, and keep a growing city powered.

BUILD AND OPTIMIZE
Place reactors, generators, and heat sinks to create an efficient grid. Rearrange buildings as demand grows, solve bottlenecks, and balance output, cooling, space, and cost.

CONTROL THE HEAT
Heat drives your production chain. Convert it into electricity, cool overloaded systems, and keep the grid running. Overheated reactors pause and cool down instead of exploding, giving you room to experiment with better layouts.

GROW WHILE YOU ARE AWAY
Collect offline income, invest in research, and return to a city ready for its next expansion. Play in short sessions or spend time perfecting every part of your grid.

RESEARCH THE FUTURE
Advance from wind, solar, hydro, and tidal power to nuclear, fusion, antimatter, arc, and black hole reactors. Every tier introduces new strategic decisions—not only bigger numbers.

EXPLORE AND EXPAND
Restore power across unique islands, complete chapter-based quests, unlock buildings, and watch the city grow with your output.

WHY PLAY REACTOR 2?
• A hands-on heat-to-electricity simulation
• Idle progress supported by meaningful strategy
• Flexible building layouts and deep research
• A living city powered by your decisions
• No forced ad breaks during normal play
• Regular updates from a small indie team that listens to player feedback
• Refined pixel art from a small indie studio

Build the grid. Master the heat. Power the city.

Terms of Service: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://rsgapps.com/privacypolicy.htm

## Key features

- Build diverse power sources
- Convert heat to electricity
- Cool systems to prevent shutdowns
- Research advanced technologies
- Idle gameplay with offline earnings
- Expand across unique islands
- Complete quests and story challenges

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| VIP Access Weekly | $2.99 | per 7 days |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Starter Coin Pack | $1.99 | one-time |
| Mega Supply Pack | $19.99 | one-time |
| Quantum Supply Pack | $34.99 | one-time |
| Ultimate Supply Pack | $49.99 | one-time |
| City Level 15 Offer | $7.99 | one-time |
| City Level 5-9 Offer | $6.99 | one-time |
| VIP Access | $12.99 | one-time |
| City Level 5 Offer | $2.99 | one-time |
| x3 Rush Hour (Forever) | $18.99 | one-time |
| Offer #30 | $29.99 | one-time |
| Rewards without Ads | $6.99 | one-time |
| 15625 Radioactive Coins | $49.99 | one-time |
| 6000 Radioactive Coins | $19.99 | one-time |
| 2875 Radioactive Coins | $9.99 | one-time |
| 1375 Radioactive Coins | $4.99 | one-time |
| Offer #16 | $14.99 | one-time |
| Offer #24 | $23.99 | one-time |
| Offer #25 | $24.99 | one-time |
| x2 Rush Hour (Forever) | $17.99 | one-time |


## Recent user reviews (10 of 21)

All indexed reviews: https://appshunter.io/ios/app/reactor-2-idle-nuclear-tycoon/id6761125316/reviews.md

### 5/5 — Fun!

*2026-08-20*

This… is a surprisingly fun game. Great progression, and at least in the beginning so far I don’t feel like anything is unfair or punishing. Really enjoying the game!!!

### 2/5 — it could be worse

*2026-07-25*

it is an incremental game
you are just waiting on timers
it counts on your impatience to make money
it is part of the modern F2P malaise
and broader cultural sickness

it gets 2 stars because there is some actual gameplay in here
just one piece though
the puzzle of arranging buildings
it's actually kind of interesting
but even that gets old
because you continually have to redo it
and it does not evolve
there are only 3 building types
it's always the same thing over and over

### 5/5 — Big improvement

*2026-07-25*

A lot better than one with more purpose

### 4/5 — Gut aber Verbesserungswürdig

*2026-07-24*

Ich habe das Spiel anfangs sehr genossen. Die ersten paar Spielstunden waren sehr spaßig und ich hab sehr viel Fortschritt gemacht. In den späteren Leveln (nach Gaskraftwerk) ging aber alles eher schleppend voran. Ja eine tycoon ist darauf aufgebaut erstmal Geld zu sammeln und upgrades zu machen, jedoch dauert es etwas zu lange. All in all good

### 5/5 — Hervorragend!

*2026-07-24*

Mittlerweile eines meiner Lieblingsspiele, obwohl es doch so simpel ist. Besonders gut gefällt mir, wie fürsorglich die Entwickler sind, sie helfen den Spielern, falls sie nicht vorankommen, nehmen Vorschläge entgegen etc. Das haben nicht mehr viele Spiele. Meine Vorschläge wurden etwa eine Stunde nach Einreichubg entgegengenommen, einen Tag später ist das Update da. Ich bin gespannt auf die Zukunft hiervon!

### 5/5 — Достойная игра

*2026-07-20*

Вполне норм, надеюсь не будут в дальнейшем увеличивать время на строительство. Чтобы не было ожиданий по несколько дней. И добавят какие-то доп игры для плюшек внутри игры

### 5/5 — Great

*2026-07-20*

The Support and the way the Communication works is Great <3

### 5/5 — Great game

*2026-07-19*

So much potential - the first game had better strategy with bridges and etc. much extensive production capability. I wish we have the same in here

### 5/5 — Не все так однозначно

*2026-07-19*

Игра то прикольная по началу.....потом с пустя три дня уже и делать то нечего..заходишь в игру чисто чтото качнуть ибо делать то и нечего прогрессия не правельно работает ты не полностью прокачиваешь свою станцию ибо открывается уже улучшиная,время прокачки это ужас чтобы сейчас мне разрушить камни и лес надо ждать пол часа... ну тоесть и так со всеми прокачками вы будите ждать часами а смысл,заходишь в игру чисто кнопку прокачки нажать а дальше все тупо заходишь обратно чтоб получить,в игре с пустя три дня просто нет контента,а в начале интересно,разразработчикам надо менять прогрессию в игре

### 2/5 — Construções caras

*2026-07-18*

Infelizmente desisti do jogo pela impossibilidade de modificar os layout devido ao crescimento exponencial do valor das construções principalmente dos reatores

## Frequently asked questions about Reactor 2

### What is Reactor 2: Nuclear Tycoon?

Reactor 2: Nuclear Tycoon is an idle simulation game where you build and manage an energy empire to power a growing city. It focuses on resource management, strategic decision-making, and offline progression.

### Does Reactor 2: Nuclear Tycoon have ads?

Yes, Reactor 2: Nuclear Tycoon contains advertisements. It is a free-to-play game that supports its development through ads and in-app purchases.

### Can I play Reactor 2: Nuclear Tycoon offline?

Yes, Reactor 2: Nuclear Tycoon is designed for offline play. You can earn resources and progress your empire even when the app is closed or you don't have an internet connection.

### What kind of power sources can I build in Reactor 2: Nuclear Tycoon?

You can build a variety of power sources, starting with renewables like wind turbines and progressing to advanced technologies such as nuclear, fusion, and even sci-fi reactors like antimatter and black hole reactors.

### What is the age rating for Reactor 2: Nuclear Tycoon?

Reactor 2: Nuclear Tycoon has an age rating of 4+, making it suitable for a wide range of players.

### How does the city grow in Reactor 2: Nuclear Tycoon?

The city in Reactor 2: Nuclear Tycoon is a living entity that grows and evolves based on your energy output. Your success in supplying energy directly impacts the city's development.

### Are there any subscription plans for Reactor 2: Nuclear Tycoon?

Yes, Reactor 2: Nuclear Tycoon offers a 'VIP Access Weekly' subscription plan for $2.99 per 7 days, providing enhanced benefits within the game.

### How often is Reactor 2: Nuclear Tycoon updated?

Reactor 2: Nuclear Tycoon was last updated on July 16, 2026, with version 1.0.1. The game was released on the same date, suggesting it is a new title with ongoing development planned.

## Version history (last 5 releases)

### 1.0.20 — 2026-08-24

Added Romanian and Hungarian language support.
Generator research now displays Waste Heat Production.
Made purchase restoration and permanent VIP access more reliable.

### 1.0.16 — 2026-08-17

- New Chapter 47 with new quests and rewards.
- Power Packs now stay in the Shop instead of rotating through timed campaigns.
- Added mouse-wheel zoom support when playing on Mac.
- Fixed buildings stopping their animations after being idle or overheated.
- Fixed the City Upgrade animation causing HUD glitches.

### 1.0.15 — 2026-08-13

- Bug fix: some buildings were not visible on the map and were not functioning correctly.
- New late-game buildings: Flux Capacitor Reactor, Doomstar Reactor, Generator, and Heat Sink.
- New Research Levels.
- Improved overall game performance.
- Potato Mode is now significantly faster.
- Minor fixes and improvements.

### 1.0.06 — 2026-07-25

• Fixed Energy Boom Weekend calculations to include City Tariffs bonuses correctly.
• Adjusted long-tap sensitivity on some devices to prevent Move mode from activating while moving the camera.

### 1.0.03 — 2026-07-24

• Move buildings: Hold and drag a building to rearrange your city.
• New purchase – Rewards Without Ads: Claim optional ad rewards instantly. Daily limits still apply.
• Infinite Rush Hours owners can exchange remaining Rush Hours for a compensation reward of their choice.
• Cash and RP shop offers are now cheaper or give more value.
• Fixed Quick

## More apps by Robert Grzybek

- [Reactor Idle Tycoon](https://appshunter.io/ios/app/reactor-idle-tycoon/id1086730643)
- [Pocket Trader. Business Tycoon](https://appshunter.io/ios/app/pocket-trader-business-tycoon/id1155905318)
- [Zombie City - Clicker Tycoon](https://appshunter.io/ios/app/zombie-city-clicker-tycoon/id1195671357)
- [ForgeCraft - Idle Tycoon](https://appshunter.io/ios/app/forgecraft-idle-tycoon/id1250842763)
- [Case Merge - Case Simulator](https://appshunter.io/ios/app/case-merge-case-simulator/id1301993731)
- [Idle Island - City Tycoon](https://appshunter.io/ios/app/idle-island-city-tycoon/id1438759771)

All apps by Robert Grzybek: https://appshunter.io/developer/1016399321

## Related topics

[reactor game](https://appshunter.io/ios/topics/reactor-game) · [energy tycoon](https://appshunter.io/ios/topics/energy-tycoon) · [throne nuclear](https://appshunter.io/ios/topics/throne-nuclear)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-31.*