Best Reactor Idle alternatives: games like Reactor Idle

27+ similar games compared and reviewed

2.9 avg rating

10 free games

Updated October 2026

WORLDNMORE TEKNOLOJI LIMITED SIRKETI

🕹 Simulation

Whether you want more options like Reactor Idle or a completely different take on the same concept, our curated list of 27+ similar apps and games has you covered. Updated for 2026 with the latest ratings and comparisons.

Top Alternatives to Reactor Idle

#1

Kingdom Defender 3D by Studio Billion Oyun Teknolojileri Anonim Sirketi

Editor's Choice

5.0(1 ratings)

FreeAds

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Defend your castle against waves of enemy soldiers and giants. Engage in strategic tower defense gameplay to protect your stronghold. Enjoy a simple yet engaging experience with this free game.

#2

Slime Land - Suck ‘Em All! by EpiCoro d.o.o.

Strong Contender

4.4(47 ratings)

FreeAdsIn-App Purchases

Slime Land - Suck ‘Em All! screenshot 1

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Embark on a whimsical adventure to collect, sell, and prosper in a world filled with colorful slimes. Use your vacuum gun to capture slimes, earn cash, and explore new islands to discover rarer creatures. Upgrade your gear and character for an endless quest for riches.

#3

King's Town by Ozan Kasikci

Manage your town!

Worth Considering

2.6(12 ratings)

FreeAds

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Take on the role of a king managing a small settlement. Engage in combat, recruit laborers, and enhance your village's infrastructure to thrive.

More games like Reactor Idle

Explore the antland!

Explore a vibrant island as an ant, upgrading your colony and expanding your territory. Engage in strategic gameplay to conquer the antland and build your empire.

Upgrade antsConquer islandExplore antland

Compare with Reactor Idle

Defend Your Island

Defend Your Island

Defend Your Island

by TINKERBOX YAZILIM SANAYI VE TICARET LIMITED SIRKETI

Strategically build and upgrade defensive towers and a hero to defeat waves of enemies. Unlock powerful spells and discover new tower types to enhance your strength and become the last one standing.

Build various towersUpgrade heroDefeat incoming enemies

Compare with Reactor Idle

Colonize Space 3D

Colonize Space 3D

Colonize Space 3D

Explore the galaxy!

Embark on an interstellar journey as a space station captain. Explore uncharted territories, manage resources, and build facilities to colonize a distant planet. Research advanced technologies to enhance your capabilities in this idle arcade adventure.

Build and expand space stationExplore and colonize alien planetStrategic resource management

Compare with Reactor Idle

Manage New York's metro system to generate revenue and expand your network. Build and optimize your subway lines to become a successful transit tycoon.

Manage metro systemGenerate revenueBuild and expand network

Compare with Reactor Idle

Command your units to conquer rival castles and expand your territory. Create new units from your castle and push the walls to claim victory. A strategy game where you push to win.

Collect and deploy unitsConquer rival castlesCreate units from castle

Compare with Reactor Idle

by Volt Games Lda

Explore a world to gather resources and build defensive towers. Upgrade your structures to protect your island from incoming enemy waves.

World explorationResource gathering (wood, gold)Tower building and upgrading

Compare with Reactor Idle

Become the deadliest pirate by gathering your crew, upgrading your ship, and setting sail. Explore islands, battle enemy ships, and find lost treasures. This idle game lets you unlock ship upgrades and new cannons.

Gather and manage your pirate crewUpgrade your ship and cannonsBattle enemy pirate ships

free with in-app purchases

Compare with Reactor Idle