Diluvian Ultra

Diluvian Ultra

Released Sep 2023

Diluvian Ultra is a single-player, first-person shooter focusing on a retro aesthetic and fast-paced, strategic combat. The game is set in its own expansive fictive universe. Rather than gritty or dark, Diluvian Ultra is colorful and fantastical, like the cover of pulp sci-fi novels of the past.

58% positive · 424 reviews
Not yet
Released, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain
Not yet
Released, content planned but development status unclear
Low confidence
Content Planned
Development Uncertain

Where to buy

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Evaluation

Diluvian Ultra launched on September 28, 2023 as "Chapter One," explicitly designed as the first installment of a multi-chapter game. The store description states directly that "further chapters continuing Atilla's story as well as expanding his arsenal and the roster of enemies to obliterate will be released as paid DLCs at a future date." Just three weeks after launch, on October 20, 2023, the developer named the next installment — "Chapter 2 - The Path of the Traitor" — shared early artwork, and described new story content, weapons, enemies, and levels. Chapter 2 has not been released. Following launch, the developer released a series of patches through early 2024. On September 16, 2024, a free standalone prologue called "Diluvian Ultra: Awakening" launched alongside the BOOMSTOCK 2024 event, showing the team was still active and creating content for the Diluvian universe. A hotfix followed on September 24, 2024. Since then, the only post was a September 24, 2025 announcement about the BOOMSTOCK 2025 sale event — a promotional post that contained no development news for the game itself. As of June 25, 2026, more than 20 months have passed since any substantive development update, and Chapter 2 — which was announced by name in October 2023 — remains unreleased with no status update from the developer. The gap between the last meaningful communication (September 2024) and today raises genuine questions about whether Chapter 2 is still actively in development.
Evidence
Developer named the next installment 'Chapter 2 - The Path of the Traitor,' shared early artwork of the Valley of the Kings, and described new story, weapons, enemies, and levels coming in future paid DLC.
news post · Oct 20, 2023 source content planned
high
Pre-launch announcement confirmed developer intent to release subsequent chapters as DLCs, framing Chapter One as the start of a larger series.
news post · Sep 21, 2023 source content planned
high

Media

Details

Publisher
Fulqrum Publishing
Achievements
24
Platform
Windows
Controller
partial support
Steam Deck
Playable
Players
Single-player

About this game

Become the immortal warrior-prince Atilla, awakened after millenia in deep space by an impudent invasion of your tomb-ship. Pick up your blood-sword and investigate - are these intruders the old enemies from your past, or as yet unknown foes to conquer? No matter, they have rooted themselves into the ship and defiled all that is sacred to you with their foul presence. It is time to drive them out into the void and save your people.

Awaken prince, and carve a red ruin!

Diluvian Ultra: Chapter One includes 10 levels + a hub, 6 different weapons with 30 different upgrades and 13 enemy types.

Further chapters continuing Atilla’s story as well as expanding his arsenal and the roster of enemies to obliterate will be released as paid DLCs at a future date.

Diluvian Ultra’s combat is built around a dual-damage system where you have to combine weapons to be effective. Armour absorbs damage, but some weapons are designed to quickly strip it off your targets - unable to kill them, but exposing them for a single lethal blow. You have to be careful though, as enemies will mix their attacks in the same way. Collect and consume blood to upgrade your weapons and pick up various power-ups at the opportune moment, to become vengeance incarnate - if only for a while!

Surviving in Diluvian Ultra is all about mobility. Dodge enemy fire while you chain together ranged attacks with close combat blows and devastating ground slams. Double-jump, dash, find cover and even deflect projectiles with your sword, but never stay in one place for too long!

Your spaceship home is a living combination of flesh and stone, and so it is with your arsenal of weapons; use both traditional Tech weapons as well as grotesque, living Organic armaments, and don’t forget to take good care of your closest companion, your sentient Squire Gun, Bella.

Diluvian Ultra may be an over the top retro FPS filled with frenetic action, but all that carnage is set on a background of an epic, tragic story tackling the themes of fanaticism, trauma, betrayal and hope for redemption, playing out in neo-gothic architectural set pieces and immense, cathedral-like spaceships.

Last evaluated Jun 25, 2026
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