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One Lonely Outpost Steam Key: Official PC Key, Instant Delivery

Yes. Every One Lonely Outpost key we sell comes from a distributor authorized by the publisher.
Open Steam, click Games, choose "Activate a Product on Steam", then paste your key. One Lonely Outpost is added to your Steam library right away.
Some keys only work in certain regions. This page shows where this One Lonely Outpost key can be activated before you buy.