Steam Winter Sale 2025 is on, with discounts reaching up to 90% across thousands of games, and if you were looking for the best co-op games to buy and enjoy with your friends, look no further, as this article has some of the best ones listed.
For squads looking to hibernate indoors through the holidays, this is the best time of the year to grab long-term co-op staples at historic low prices, many of them Steam Deck Verified and heavily discounted for the first time in months.
Deals like Deep Rock Galactic and classic hits like Left 4 Dead 2 at substantially low prices turn casual ideas into full winter traditions with friends. Whether you want loud horror lobbies, couch chaos, or chilled progression grinds, here are the five best co-op picks you can buy in the Steam Winter Sale 2025.
Best co-op games in Steam Winter Sale 2025
Lethal Company
- Discount: 25%
- Price: $7.49
Lethal Company is discounted by 25% to $7.49 in the Winter Sale, making it one of the cheapest high-impact squad games on Steam. You and up to three friends work for a shady corporation, landing on abandoned moons to collect scrap before a strict quota and a hard extraction deadline expire.
It’s the perfect fit this Winter, thanks to nighttime missions in fog, snow, and dim industrial corridors that match holiday late-night sessions when friends hop into voice chat under blankets or heaters. Proximity voice chat means teammates only hear you if they’re close in-game, so getting separated in the dark with creatures lurking turns every scream into comedy.
Deep Rock Galactic
- Discount: 70%
- Price: $8.99
Deep Rock Galactic sits at around 70% off in the Steam Winter Sale, dropping it to roughly the price of a coffee or two. It is a one-to-four player co-op FPS where space dwarves mine alien-infested caves, featuring fully destructible environments and procedurally generated cave systems that keep every mission fresh.
Missions often drop you into icy biomes, frozen caverns, and blizzards, with dwarves shouting to keep spirits up while you dig through the dark. The game supports four distinct classes (Driller, Engineer, Gunner, and Scout) that work best when players coordinate, making it ideal for regular squads or Discord groups.
Between missions, your team returns to a cozy space hub where you can drink beer, dance, and upgrade gear while snow-like particles drift around certain seasonal decorations during holiday events. That combination of intense cave combat followed by warm hub downtime makes it a natural winter comfort pick, especially at a steep discount.
Left 4 Dead 2
- Discount: 80%
- rice: $1.99
Left 4 Dead 2 is an older title, but in the Winter Sale 2025, it drops to around 80% off, and remains one of the cheapest high-quality co-op shooters available. It’s the perfect Winter game as it’s easy to install on almost any PC, with a tiny download size by modern standards, and built around 20 to 40-minute campaigns that fit into an evening.
The game supports four-player co-op through campaigns and survival modes. Because of the tiny price tag, Left 4 Dead 2 is ideal when your group wants something fast, chaotic, and low-commitment during the holidays.
Phasmophobia
- Discount: 30%
- Price: $13.99
Phasmophobia remains one of the go-to ghost-hunting co-op games on Steam, and it sees a solid discount in the Winter Sale 2025. It supports one to four players who go in as paranormal investigators entering haunted locations to collect evidence and identify the ghost type before it hunts and wipes the team.
Thanks to the Winter’s Jest v0.15.1.0 update, the whole premise leans into cold, eerie nights, flashlights cutting through fog, breath visible in chilled rooms, and power going out while players shiver in real life.
There’s also a VR support that adds another layer for winter break gatherings. One person in VR and others on PC can share the same lobby as they try not to scream loud enough to wake anyone in the house.
Overcooked! 2
- Discount: 75%
- Price: $6.24
Overcooked! 2 is a top pick this winter as the game’s cartoony art style includes various festive-leaning maps and seasonal content, making it easy to imagine your squad as a frantic holiday kitchen crew managing impossible dinner rushes.
It supports up to four players in both local and online co-op, as you run increasingly chaotic kitchens where orders pile up, and levels shift beneath your feet. It also plays well on Steam Deck and mid-range PCs, so it works for couch setups during the winter holidays when everyone is gathered around a TV.
Sessions are broken into short levels lasting just a few minutes each, perfect for family gatherings or mixed-skill groups where some players are not regular gamers.
Having said that, do take a look if you were looking for the best Indie games to buy in Steam Winter Sale 2025 and best Nintendo Switch games for families this Christmas.
