Sunken Graves (AppID: 3732860)

Sunken Graves is a first-person horror adventure that can be played solo or in online co-op with up to three others. set in a world where humanity has vanished. You awaken in a place built by human hands—but twisted by time, decay, and something far older. you must uncover what happened, what remains, and what still watches.

Armor & Power

Your armor can be equipped and upgraded with a variety of abilities and weapons. All armor functions draw from a shared power pool — every ability and weapon uses watts to run. You can set voltage and current to tune performance: overclock for short bursts, or conserve power to stay online longer. Swap and upgrade modules to shape your playstyle (support, offense, or utility), and reconfigure your loadout whenever the situation calls for it.

Exploration & Traversal

Explore a semi-open world by submarine. Travel between facilities and sites to salvage gear and uncover secrets. Pilot the submarine to navigate hazards and dock for exploration. Work with your crew to reach and investigate remote locations. Some sites hide mysterious domains that can only be entered by uncovering secrets or using special means.

Online Co-op Dynamics

Play solo or with up to three friends. Work together to survive, solve puzzles, and uncover hidden domains. Discover powerful abilities, build unique loadouts, and combine strengths to face ancient entities. Every role matters—adapt, support each other, and forge your path through the abyss.