Lost Altr cover art

Lost Altr

LOST ALTR is a solo rogue-lite card game set within the crumbling halls of a forgotten temple. You’ll face a series of Trials—mysterious encounters drawn from an ever-shifting deck. Each completed Trial leads…

29 June 2026

Lost Altr is a card & board game developed by ALTER-BOY, released 29 June 2026 on PC (Microsoft Windows).

Verified Sources: IGDB , Steam

What Lost Altr is

Lost Altr is a card & board game game developed by ALTER-BOY and released in 2026. It is available on PC (Microsoft Windows) only. It runs on Unity.

The premise, in the publisher's words

LOST ALTR is a solo rogue-lite card game set within the crumbling halls of a forgotten temple. You’ll face a series of Trials—mysterious encounters drawn from an ever-shifting deck. Each completed Trial leads you deeper into the Ruins of ALTR. Use Aspect cards to shape your fate—mysterious forces that grant you powerful advantages, but always at a cost. Built on the foundation of the Scoundrel card mechanics by Zach Gage and Kurt Biegand, a heavily reimagined experience, LOST ALTR blends strategy, luck, and lore in a dark, esoteric world. The path forward is never the same. The further you go, the more the ruins remember. Early Access will evolve with new cards, mechanics, and layers of…
Description from the publisher · source

How it plays

It is played from a first person perspective. Its themes are fantasy. It is a single-player game with no multiplayer component.

What it launched against

Lost Altr launched on 29 June 2026, within three weeks of Assassin's Creed Black Flag Resynced, Palworld, Doom: The Dark Ages - Revelations and Denshattack!.

Released around the same time: Assassin's Creed Black Flag Resynced, Palworld, Doom: The Dark Ages - Revelations, Denshattack!.

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Quick answers

Lost Altr — frequently asked questions

When did Lost Altr come out?
Lost Altr was released on 29 June 2026 for PC (Microsoft Windows).

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