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Best Co-op Games Under $20
Affordable co-op games that deliver a full evening, a full campaign, or an excellent repeatable loop for less than $20 when on sale or at their usual price.
Prices move constantly, so treat this as a value guide rather than a live price list. These games earn a place here because they are regularly inexpensive or offer unusually good replay value.
Big value, small price
1
Left 4 Dead 2
A still-excellent four-player campaign shooter with clear roles, memorable finales, and enough mutations to keep runs unpredictable.
2
Portal 2
Its co-op campaign is a compact masterclass in communication and spatial puzzles, and it frequently costs very little.
3
Risk of Rain 2
Each run becomes a different build experiment, making it easy to justify another round even after a spectacular defeat.
Small games with a lot to do
4
Unrailed!
Lay track under pressure, improvise around terrain, and argue cheerfully about who forgot the water tank.
5
Human: Fall Flat
Wobbly physics turn simple platforming into a comedy machine, with new workshop levels extending the value.