Best Online Co-Op indie games under $20
These are the best online co-op indie games you can buy for under $20. indielist lists 76 paid online co-op games with a list price at or below $20, ranked by Steam review count so the most-validated picks lead. The average list price here is $14.01, and the cheapest is Nine-Ball Roulette at $3.99. The most reviewed is Terraria with 1,216,769 Steam reviews. Beyond the budget end, this wider list adds 46 mid-price picks between $10 and $20 that a stricter under-$10 list leaves out. Every price is the tracked Steam list price, not an estimate, and each game links to a white-box sales estimate you can open and audit rather than a black-box number. This is a value list: a sensible price crossed with real player validation, so you can find a online co-op game that is actually good, not just affordable. Free-to-play titles are excluded here; this is about paid games that punch above their price.
Games
76
Avg list price
$14.01
Cheapest
$3.99
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Terraria
2011 · Action
$9.99 1,216,769 reviews · 97% positive
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Garry's Mod
2006 · Casual
$9.99 1,070,495 reviews · 97% positive
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Phasmophobia
2020 · Action
$19.99 676,875 reviews · 95% positive
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Valheim
2021 · Action
$19.99 452,821 reviews · 94% positive
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Lethal Company
2023 · Action
$9.99 409,614 reviews · 97% positive
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Don't Starve Together
2016 · Action
$14.99 367,165 reviews · 95% positive
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Raft
2022 · Adventure
$19.99 318,148 reviews · 93% positive
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Starbound
2016 · Action
$14.99 120,582 reviews · 90% positive
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Escape the Backrooms
2025 · Action
$9.99 117,078 reviews · 90% positive
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Scrap Mechanic
2016 · Action
$19.99 104,924 reviews · 92% positive
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Stick Fight: The Game
2017 · Action
$4.99 99,573 reviews · 93% positive
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Gunfire Reborn
2021 · Action
$19.99 87,954 reviews · 93% positive
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DEVOUR
2021 · Indie
$9.99 68,077 reviews · 91% positive
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WEBFISHING
2024 · Casual
$4.99 57,052 reviews · 97% positive
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Party Animals
2023 · Action
$19.99 56,574 reviews · 80% positive
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BattleBlock Theater®
2014 · Action
$14.99 55,545 reviews · 97% positive
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Golf With Your Friends
2020 · Casual
$14.99 49,202 reviews · 88% positive
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Core Keeper
2024 · Action
$19.99 48,722 reviews · 93% positive
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Liar's Bar
2024 · Casual
$6.99 47,908 reviews · 90% positive
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Tabletop Simulator
2015 · Casual
$19.99 47,881 reviews · 96% positive
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Pummel Party
2018 · Action
$14.99 45,540 reviews · 89% positive
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Torchlight II
2012 · Action
$19.99 45,316 reviews · 93% positive
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For The King
2018 · Adventure
$19.99 43,411 reviews · 88% positive
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PAYDAY™ The Heist
2011 · Action
$9.99 40,841 reviews · 93% positive
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ShellShock Live
2020 · Action
$9.99 35,486 reviews · 93% positive
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Clone Drone in the Danger Zone
2021 · Action
$19.99 34,960 reviews · 96% positive
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The Escapists 2
2017 · Indie
$19.99 33,456 reviews · 91% positive
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Who's Your Daddy?!
2016 · Action
$9.99 31,667 reviews · 80% positive
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Golf It!
2023 · Casual
$8.99 30,782 reviews · 90% positive
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PICO PARK
2021 · Action
$4.99 29,747 reviews · 91% positive
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Dinkum
2025 · Adventure
$19.99 28,769 reviews · 92% positive
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Necesse
2025 · Action
$14.99 27,289 reviews · 93% positive
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Mindustry
2019 · Strategy
$9.99 26,755 reviews · 96% positive
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Just Shapes & Beats
2018 · Action
$19.99 25,426 reviews · 98% positive
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Demonologist
2023 · Action
$19.99 23,737 reviews · 85% positive
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Tribes of Midgard
2021 · Action
$19.99 23,145 reviews · 76% positive
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Streets of Rogue
2019 · Action
$19.99 22,834 reviews · 96% positive
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Spelunky 2
2020 · Action
$19.99 21,693 reviews · 93% positive
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Witch It
2020 · Action
$19.99 19,769 reviews · 89% positive
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Escape Simulator
2021 · Adventure
$19.99 19,089 reviews · 94% positive
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We Were Here Together
2019 · Adventure
$12.99 17,434 reviews · 82% positive
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The Past Within
2022 · Adventure
$5.99 16,514 reviews · 95% positive
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Barony
2015 · Action
$19.99 14,988 reviews · 91% positive
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Friends vs Friends
2023 · Action
$9.99 14,484 reviews · 83% positive
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Monster Prom
2018 · Indie
$11.99 14,279 reviews · 93% positive
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Subsistence
2016 · Action
$13.99 13,693 reviews · 72% positive
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Natural Selection 2
2012 · Action
$4.99 13,342 reviews · 85% positive
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PANICORE
2024 · Action
$9.99 12,661 reviews · 79% positive
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Cosmoteer: Starship Architect & Commander
2022 · Simulation
$19.99 12,629 reviews · 94% positive
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Bloons TD 5
2014 · Action
$9.99 11,861 reviews · 95% positive
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Lost Castle 2
2024 · Action
$17.99 11,179 reviews · 79% positive
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CastleMiner Z
2014 · Action
$5.99 11,130 reviews · 81% positive
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We Were Here Too
2018 · Adventure
$9.99 10,988 reviews · 79% positive
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The Headliners
2025 · Action
$7.99 10,118 reviews · 86% positive
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Ale & Tale Tavern
2024 · Action
$14.99 9,803 reviews · 89% positive
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Fast Food Simulator
2024 · Indie
$14.99 9,284 reviews · 89% positive
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Unravel Two
2020 · Action
$19.99 8,853 reviews · 78% positive
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Dale & Dawson Stationery Supplies
2024 · Casual
$7.99 8,814 reviews · 92% positive
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Lethal League Blaze
2018 · Action
$19.99 6,632 reviews · 97% positive
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Monster Prom 2: Monster Camp
2020 · Indie
$11.99 6,113 reviews · 96% positive
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Euro Truck Simulator 2 - Scandinavia
2015 · Indie
$17.99 5,981 reviews · 95% positive
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Guilty as Sock!
2025 · Casual
$5.50 5,405 reviews · 90% positive
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Tinkerlands
2025 · Action
$12.99 3,860 reviews · 86% positive
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Scott Pilgrim vs. The World™: The Game – Complete Edition
2023 · Action
$14.99 3,580 reviews · 75% positive
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Element TD 2 - Tower Defense
2021 · Indie
$14.99 3,203 reviews · 90% positive
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Warhammer: Vermintide 2 - Winds of Magic
2019 · Action
$19.99 2,611 reviews · 32% positive
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Hotshot Racing
2020 · Action
$19.99 2,354 reviews · 77% positive
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Nine-Ball Roulette
2025 · RPG
$3.99 2,227 reviews · 88% positive
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Embr
2021 · Action
$19.99 2,186 reviews · 86% positive
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West Hunt
2023 · Casual
$9.99 2,152 reviews · 83% positive
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Endless Alice
2025 · Action
$8.99 2,084 reviews · 91% positive
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Better Mart Simulator
2025 · Casual
$14.99 1,151 reviews · 90% positive
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The Other Side
2025 · Action
$13.99 1,075 reviews · 94% positive
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Ghost Janitors
2025 · Action
$8.99 882 reviews · 85% positive
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Backrooms: Extractions
2025 · Action
$6.99 693 reviews · 73% positive
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The Anomaly Project
2024 · Action
$7.99 614 reviews · 81% positive
Frequently asked questions
- What are the best online co-op indie games under $20?
- indielist lists 76 paid online co-op indie games priced at or below $20, ranked by Steam reviews, led by Terraria (1,216,769 reviews). The cheapest is Nine-Ball Roulette at $3.99.
- How is this "under $20" list built?
- By a data filter, not opinion: a paid online co-op game qualifies if its tracked Steam list price is at or below $20. The list is ranked by review count and updates as prices and the catalog change. Free-to-play games are excluded.