Games like Mega Prison
If Mega Prison is your kind of game, the closest matches are Repterra, Here Comes The Swarm and They Are Billions — picked from the ranked list below. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.
Get personalized picks →About Mega Prison: Mega Prison is a prison defense and riot-control strategy game. Deploy guards, dogs, water cannons, barriers, and riot vehicles to contain thousands of inmates as unrest escalates. Manage resources, hold the line, and KEEP THEM IN... at any cost!

Players who liked Mega Prison also play
Steam players who put hours into Mega Prison also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.
Repterra
WHY THIS
Top pick for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
Repterra is a base-building survival RTS set in a world overrun by dinosaurs. Manage your colony while battling massive dino hordes. Breed and ride your own dinos, unlock permanent upgrades, and fight to reclaim the world for humanity.
Here Comes The Swarm
WHY THIS
Second-strongest match for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
Here Comes the Swarm is a survival RTS with a pause button! Create your strategy, build, manage, and defend your settlements at your own pace. Take the fight to the hive mind and lead expeditions to deliver a deadly blow and eradicate your foes. Will you reclaim Ulora from the relentless Swarm?
They Are Billions
WHY THIS
Third-strongest match for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
They Are Billions is a Steampunk strategy game set on a post-apocalyptic planet. Build and defend colonies to survive against the billions of the infected that seek to annihilate the few remaining living humans. Can humanity survive after the zombie apocalypse?
Europa Universalis III Complete
WHY THIS
Ranked #4 for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
Europa Universalis III Complete includes the original Europa Universalis III as well as the expansions In Nomine and Napoleons Ambition Europa Universalis III delves deeply into the areas of exploration, trade, warfare and diplomacy.
Against the Storm
WHY THIS
Ranked #5 for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
A dark fantasy city builder where you must rebuild civilization in the face of apocalyptic rains. As the Queen’s Viceroy, lead humans, beavers, lizards, foxes, and harpies to reclaim the wilderness and secure a future for civilization's last survivors.
Judgment: Apocalypse Survival Simulation
WHY THIS
Ranked #6 for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
Build, scavenge, craft, and perform occult rituals to survive in a demon-infested, post-apocalyptic colony simulation. Will you survive Judgment day?
Tropico 4
WHY THIS
Ranked #7 for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
The world is changing and Tropico is moving with the times - geographical powers rise and fall and the world market is dominated by new players with new demands and offers - and you, as El Presidente, face a whole new set of challenges.
Tropico 6
WHY THIS
Ranked #8 for Mega Prison fans by collaborative filtering across millions of Steam libraries. Shares Strategy with Mega Prison.
El Presidente is back! Prove yourself once again as a feared dictator or peace-loving statesman on the island state of Tropico and shape the fate of your very own banana republic through four distinctive eras.
Free alternatives
Free-to-play games that recommended players of this title also tend to enjoy.
Ultimate Custom Night
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
The Murder of Sonic the Hedgehog
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!
Magic Archery
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Train a commoner to become the greatest archer in this short incremental game! Increase your stats, gather wealth from quests, buy upgrades, and infuse your arrows with magic.
The Lab
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
SuchArt: Creative Space
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Paint on any surfaces with numerous tools in Creative Space — a free sandbox version of SuchArt: Genius Artist Simulator. Create masterpieces, complete commissions, and decorate your studio in the most advanced artist sim!
Outpath: First Journey
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!
The Riftbreaker: Prologue
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Mega Prison.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
The Last Sovereign
WHY THIS
Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Strategy with Mega Prison.
Explore a world torn between armies of lust and purity in which everything is more complex than it seems, deciding the fate of nations through might, politics, and finance. Every decision matters in an intricate saga that tracks thousands of variables.
Narrow it down
Head-to-head comparisons
More from Chute Apps
Other recommendable Steam games by Chute Apps, ranked by review count so the studio's hits land first.
Rogue Star Rescue
WHY THIS
Another title from Chute Apps, the studio behind Mega Prison. Shares Strategy with Mega Prison.
Bullet Hell Insanity + Tower Defense Strategy. Rogue Star Rescue is a quirky new type of rogue-like shooter. Blast your way through diverse planets while rescuing your teammates and gathering traps for your defense strategy. Play solo or online to stop the Rogue Star before it annihilates everything!
Forest Fire
WHY THIS
Another title from Chute Apps, the studio behind Mega Prison.
Be the Forest Fire and burn everything in sight! A Rogue-lite destruction-fest where every pixel is physically simulated. Burn trees, buildings, vehicles, and tiny screaming humans. Dodge bullet-hell rain clouds and pissed-off firefighters to stay alive... Only YOU can start Forest Fires.
Sandbox Skyline
WHY THIS
Another title from Chute Apps, the studio behind Mega Prison. Shares Strategy with Mega Prison.
Build impressive skyscrapers pixel-by-pixel, and protect them from the harsh realities of nature. Each pixel is physically simulated to interact with earthquakes, firestorms, blizzards, and tsunamis. Protect your skyline and expand your territory in this relaxing (yet challenging) sandbox builder.
Infest
WHY THIS
Another title from Chute Apps, the studio behind Mega Prison. Shares Strategy with Mega Prison.
Infest is a roguelike deckbuilder where every pixel on the battlefield can burn, freeze, corrode, shock, and melt. Carefully craft your deck and deploy cards to alter the environment, buff your stats, and unleash stunning pixel-by-pixel damage upon your enemies!
Repterra
WHY THIS
Another title from Chute Apps, the studio behind Mega Prison. Shares Strategy with Mega Prison.
Repterra is a base-building survival RTS set in a world overrun by dinosaurs. Manage your colony while battling massive dino hordes. Breed and ride your own dinos, unlock permanent upgrades, and fight to reclaim the world for humanity.
Frequently asked about Mega Prison
- What games are most similar to Mega Prison?
- Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Mega Prison are Repterra, Here Comes The Swarm, They Are Billions.
- Who developed Mega Prison?
- Mega Prison was developed by Chute Apps.
imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Mega Prison.
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