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O3: Hollow Descent

Adventure

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At a glance

O3: Hollow Descent is an adventure video game on PC.

About

03 is a bullet-hell rogue-like shooter. Set in a surreal world inspired by the art of H.R. Giger and Zdzisław Beksiński.

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Popularity—unranked (fewer than 100 ratings)

Rank · Adventure—unranked

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Steam news

The latest announcements posted on the game's Steam page.

Steam

8 April 2026🎉 O3: Hollow Descent is NOW LIVE on Kickstarter! 🚀

Hey everyone 🖤 The moment is here… After all this time working on the game and preparing the campaign, O3: Hollow Descent is now live on Kickstarter. This is a huge step for me as a solo developer, and it will directly support the final stage of development.

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Steam

27 March 2026O3: Hollow Descent Kickstarter goes live April 7

Hey everyone 🖤 Just a quick heads-up. The Kickstarter campaign for O3: Hollow Descent goes live on April 7 at 18:00 CET . If you’ve been enjoying the progress of the game and want to help support its development, this will be the moment to do it. I’m building

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Steam

24 February 2026O3: Hollow Descent - Steam Next Fest Demo Gameplay

Watching a full demo run of O3: Hollow Descent during Steam Next Fest. If you enjoy what you see, consider wishlisting, it helps a ton as a solo developer.

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