Shadow Dungeon Release Date

Shadow Dungeon's full release went live on Steam on August 26, 2026, developed and self-published by OO Cat for Windows at $9.99, with a 10% introductory discount to $8.99 running until September 9, 2026. The release closed a short, well-documented road: a public demo from April, one major demo update in May, a content announcement four days before launch, and then the complete 1.0.

This page is the release record — the timeline, what shipped on day one, the current version, and where official news land. Now that the game is out, the "release date" question has become a version-tracking question, and this hub keeps that answer current.

The release timeline

The road to 1.0 in five dated steps, each from official pages or the platform data behind them:

• March 27, 2026 — SteamDB first records the demo client in a changelist; the demo is being prepared for public release.
• April 14, 2026 — the demo launches as a separate free app (app 4563350), letting players try all four classes before paying.
• May 2, 2026 — demo Update 0.4.0 adds a new chapter, 10 bosses, and 30 levels, and completes localization for all 24 languages. After this update the demo freezes as development moves to the full game.
• August 22, 2026 — the "Complete Official Version Content" announcement lists everything shipping in 1.0: the 1,000+ new weapon affixes, the Greater Rift difficulties, map-tied drops, and the rest of the launch package.
• August 26, 2026 — 1.0 launches at $9.99 with the 10% introductory offer, alongside the official "The Full Game Is Now LIVE!" video on OO Cat's YouTube channel.

The date had slipped along the way, and the record is worth keeping honestly. In April–May 2026 community threads, players relayed shifting targets from the developer — an idealized mid-May, then a broader "Q3 2026" window; an April video claiming the game would release "next month" was simply wrong. The final date landed inside the Q3 window those threads described. Treat all of those as community-relayed history; the store page is the authority.

Notable by its absence: Early Access. No source in the release record shows an Early Access period — the game went from public demo to complete release in one step, which is unusual for an indie ARPG and worth knowing when comparing it to peers.

What shipped with 1.0

The 1.0 package, per the official content list: seven chapters with over 160 maps and stages; four classes with twelve talent trees and 370+ skills; over 60 unique bosses and 200+ monsters; over 100,000,000 items from 3,200 base templates; 15 armor sets per class; unlimited skill points; 17 Blessing Shrines; the Reforging, Enchanting & Enhancement system; Mystic Dungeon Challenges; and a warehouse with unlimited pages. The launch notes added the campaign rebalance to roughly 30–50 hours ending near level 100, map-tied monster levels and drops, Greater Rifts on four difficulties, and the Paragon Talent Tree beyond the cap.

The roadmap beyond launch is dated only by its appearance on the store page: four new classes — Assassin, Engineer, Barbarian, Warlock — plus a Mercenary System, Tower Defense Challenges, a Rune System, and Transmutation & Crafting, all without announced dates.

Current version and post-launch patches

The game launched at version 1.0 on August 26. Fan wikis tracking the patch notes report version 1.0.1 on August 27, 2026, fixing controllers not being recognized, frame drops when playing with a controller, missing screen resolutions, auto-salvage behavior, treasure sprite speed, experience gain, health-bar display, and backpack sorting. Those specific fixes are fan-documented rather than captured from an official patch note in our research, so treat the Steam news hub as the authoritative list.

Launch-week stability signals worth noting: the store's review aggregate read Very Positive — 82% of 485 reviews in the August 28 snapshot, and the Steam community hub showed thousands of players in-game on August 28. The review hub keeps the verdict picture with dates; the demo page covers the free app's own release history.

Where official news land

OO Cat publishes through first-party channels only: the Steam news hub, the official YouTube channel, X, and Bilibili. There is no separate official website. A fan compilation also attributes to the developer about nine years of solo development on this first game — an interesting claim that traces to the 0.4.0 note as reported by others, not to a page we captured directly, so it is recorded here as attribution only.

When the roadmap items get dates, they will appear on those official channels first and on this page shortly after — the release-date question, answered going forward, lives here. For the game itself, game info holds the entity facts, and gameplay shows what the release actually plays like.

Languages and regional availability

The release shipped fully localized, which is unusual care for a solo-developed indie: all 24 languages include interface, full audio, and subtitles — the launch notes credit the demo's 0.4.0 update with completing that localization back in May 2026. The language list spans English, Spanish (Spain and Latin America), Japanese, Korean, Chinese (Simplified and Traditional), Portuguese (Brazil and Portugal), French, German, Italian, Russian, Polish, Ukrainian, Czech, Hungarian, Turkish, Greek, Danish, Swedish, Finnish, Dutch, and Thai. This wiki publishes in the four the localization research prioritized: English, Spanish, Japanese, and Korean.

One footnote from a fan compilation that catalogs the store pages: two storefront locales keep the English title rather than a translated one. The localized store titles differ elsewhere, too — Spanish lists the game as Mazmorra de las Sombras, and Japanese and Korean carry translated equivalents — which matters for players searching in their own language, and for this wiki's localized pages, which use the store names per region.

Why there was no Early Access

The release path — public demo, then a complete 1.0 — is unusual enough among indie ARPGs to be worth naming. Early Access games sell an unfinished build to fund development; this game instead shipped a free demo to build an audience, froze it in May, and released only when the content list was complete. The August 22 "Complete Official Version Content" announcement, four days before launch, reads like the end of that strategy: everything the store promised, listed and dated before anyone paid.

For players, the practical consequences are pleasant ones. There is no legacy early-access save format, no paid-founder tier, and no roadmap of promised-but-missing features at launch — the roadmap (four new classes, mercenaries, tower defense, a rune system, transmutation and crafting) is explicitly future content on top of the shipped game. The demo page preserves the free try-out that began this road, and review tracks how the release has been received since August 26.

Launch week by the numbers

The first days after August 26 gave the release its early shape, and the numbers are worth recording with their stamps. The store's review aggregate moved through Very Positive across the week — 82% of 485 reviews by the August 28 snapshot, with the review page tracking the sequence. The Steam community hub showed 3,722 players in-game on August 28, alongside active threads comparing the game to the genre's established names. The official launch video, "The Full Game Is Now LIVE!", was posted on release day itself.

The commercial window is also part of the release record: the 10% introductory offer that brings the price from $9.99 to $8.99 runs until September 9, 2026 — the store's own stated end date. After that, the price history resets to the base $9.99 until OO Cat announces otherwise. For the game behind these numbers, game info holds the entity facts, and gameplay shows what the release actually plays like.