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Aground Zero

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About Aground Zero

Aground Zero is a 3D game set during the events of Aground, though you do not need to know the earlier game to play. After sleeping through the end of the world, you wake underground with PAI, your Personal AI, and a protosuit. You mine ores, build an underground base and wake other survivors to bring them there.

Build and survive

To reach the surface, you need to expand and automate your base. You can also get help from familiar faces, while contending with creatures that are not native to Earth.

Local co-op

Up to four players can play together locally. One player can use the keyboard and mouse; each other player needs a separate controller, though all four players can use controllers.

Frequently asked questions

Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.

Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.

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