Co-op games like Pollute & Conquer

Miss the competitive and replayable pull of Pollute & Conquer? These co-op games are a good place to start. Most of them work well for a shared session.

Eco
Eco puts you and real people on one living planet with thirty days until a meteor hits. You build towns, farm, hunt, trade, and vote on laws together to advance tech fast enough to stop it, without wrecking the ecosystem you all depend on.
Replayable
80% of 11,416 Steam reviews are positivePlayers online now: 206$29.99
Terra Concordia: Civilizations in Harmony
Choose one of four civilizations and explore a hex map that unfolds differently every game. Build wonders, research technologies and compete for victory points without wrecking the planet: if nature runs out, everyone loses. A strategic euro game for 1 to 4 players.
Competitive, Replayable, Minimalist
100% of 2 Steam reviews are positive$4.99
PlanetX
A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up. Wars take days, and alliances decide them. Build an economy that can feed an army, then hold your border. Expect ten hours before you feel competent.
Competitive, Replayable
67% of 54 Steam reviews are positiveFree
Radiis
Radiis is a turn based strategy game without any moving units, only buildings. Place your buildings wisely and be the first player to conquer the land.
Competitive, Replayable, Minimalist
91% of 95 Steam reviews are positive$14.99
Dice Kingdoms
Dice Kingdoms is a turn-based strategy board game where you and your co-op friends each grow a small island kingdom, then race to win by culture, conquest, or an expensive wonder. Roll dice for resources, place buildings tight against attacks and disease, and send armies to smash rival castles. Short, social, and happily backstabby.
Competitive, Replayable, Colorful
84% of 583 Steam reviews are positivePlayers online now: 16$14.99
Pandora: First Contact
Pandora: First Contact is a science fiction 4X turn-based strategy game on a planetary scale. Our Earth has been exhausted and colonial attempts on other planetary bodies have been in vain. Finally, after decades of exploration, an interstellar probe has brought promise of a new world.
Replayable
61% of 540 Steam reviews are positive$29.99
Pioneers of Pagonia
Rebuild fog-cleared islands with up to 3 co-op friends in a shared settlement where everyone builds, trades, and manages at once. You grow a living economy of tiny carriers and long production chains, befriend tribes, and hold off bandits together. A calm, creative team project with real strategy underneath.
Replayable
81% of 4,861 Steam reviews are positivePlayers online now: 98$20.99
Solar Nations 2
Take a great power in 2092 and carve up the Solar System with co-op friends beside you. Build colonies, design fleets, mix armies and spacecraft into one war machine, then write your own scenario and share it. Big, strange, and made for long shared campaigns.
Competitive, Replayable
85% of 667 Steam reviews are positivePlayers online now: 46$14.99
Earth Simulator
Build a planet from scratch or start with the real Earth, then watch humanity grow from tribes to spaceships. Sculpt continents, steer the winds, send rain or meteors, and step down from the heavens to walk the streets of any city you made.
Replayable
93% of 242 Steam reviews are positivePlayers online now: 89$4.99
My Colony
A sci-fi colony sim that starts with one lander and a rover and ends wherever your ambition does. Pick a faction, grow an outpost into an empire, trade on a player-run market, or share a region with friends. It runs on almost anything and never asks you to wait for a timer.
Competitive, Replayable
88% of 277 Steam reviews are positivePlayers online now: 4$4.99
Revival: Recolonization
Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and highly replayable experience.
Replayable
69% of 338 Steam reviews are positive$19.49
Solaris
Discover a space strategy game filled with conquest, betrayal and subterfuge. Build alliances, make enemies and fight your way to victory and galactic domination. Will you conquer the galaxy?
Competitive, Replayable, Minimalist
81% of 90 Steam reviews are positiveFree

Hidden gems like Pollute & Conquer

Earth Simulator

Shape continents and climates, then watch civilizations rise under your hand, with friends along for the ride.

$4.99

Warnament

Warnament is an approachable turn-based grand strategy sandbox where each of co-op friends takes a nation and redraws the map together.

$9.74

DSS 2: War Industry

In this real-time grand strategy game, command armies, build cities, and manage a dynamic economy.

$17.99

Solar Nations 2

Take a great power in 2092 and carve up the Solar System with co-op friends beside you.

$14.99

TerraScape

TerraScape is a cozy medieval city-puzzler on floating hex islands where you and up to three co-op friends place buildings from card decks to grow a…

$14.99

TFC: The Fertile Crescent

A Bronze Age RTS where food is everything. Settle fertile land, grow your village, and turn grain into armies and Knowledge Points.

$5.49

Dice Kingdoms

Dice Kingdoms is a turn-based strategy board game where you and your co-op friends each grow a small island kingdom, then race to win by culture…

$14.99

Pioneers of Pagonia

Rebuild fog-cleared islands with up to 3 co-op friends in a shared settlement where everyone builds, trades, and manages at once.

$20.99

Hexarchy

Hexarchy is a fast, card-driven take on historical 4X strategy that fits an evening with co-op friends.

$19.99

Vectorio Classic

Vectorio Classic is a simple 2D survival base-builder where you and co-op friends claim resource patches, research better weapons, and hold the line…

Free

Shadow Empire

Shadow Empire is a deep turn-based 4X wargame where you rule a small nation trying to retake a ruined alien planet.

$19.99

Revival: Recolonization

Set in a post-apoc version of Earth, Revival is a 4x strategy game where the world and its rules can change at key moments, creating a deep and…

$19.49

Newest co-op games like Pollute & Conquer

Earth Simulator

Shape continents and climates, then watch civilizations rise under your hand, with friends along for the ride.

$4.99

Terra Concordia: Civilizations in Harmony

Choose one of four civilizations and explore a hex map that unfolds differently every game.

$4.99

Horn of the Warlord

Lead a Viking clan to glory in this accessible turn-based conquest strategy game.

$14.99

Global Protocol: New World Order

Lead any of 221 countries through a living 2026 world in this data-driven grand strategy game.

$19.99

Territory Control 2

A 2D multiplayer sandbox game revolving around industry, innovation, factions, combat and emergent gameplay.

$19.99

War of Dots

War of Dots is a minimalist real-time strategy game stripped down to light units, heavy units, and cities.

Free

Pioneers of Pagonia

Rebuild fog-cleared islands with up to 3 co-op friends in a shared settlement where everyone builds, trades, and manages at once.

$20.99

DSS 2: War Industry

In this real-time grand strategy game, command armies, build cities, and manage a dynamic economy.

$17.99

Warnament

Warnament is an approachable turn-based grand strategy sandbox where each of co-op friends takes a nation and redraws the map together.

$9.74

PlanetX

A persistent real-time strategy MMO on one shared planet. Other players will come for your land while you sleep, unless your shield is up.

Free

Solar Nations 2

Take a great power in 2092 and carve up the Solar System with co-op friends beside you.

$14.99

Settle and Battle: New Empires

A homage to classic real-time strategy games. Gather resources, build an empire, and command powerful armies to conquer the world.

$6.99