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Action indie game UDONGEIN X launched in 2021 from developer and publisher bar-holographic-otaku. With 455 Steam reviews at 92% positive and a $4.99 initial price, it fits a budget hidden-gem profile for players browsing very positive indie action releases.
Overview
UDONGEIN X is a 2021 Action game developed by Bar Holographic Otaku and published by Bar Holographic Otaku. On Steam it has gathered 416 player reviews, 92% of them positive, which counts as a very positive reception among indie titles in the Action category. The game is available on windows, and launched at $5. The pairing of developer Bar Holographic Otaku with publisher Bar Holographic Otaku is one of the studio-publisher relationships indielist tracks, letting players find comparable games and letting developers and investors study how Action projects reach the market. indielist's white-box method estimates its lifetime sales at roughly 14,000 to 32,000 units, with the full Boxleiter factor breakdown shown on this page rather than a single black-box figure. Within indielist's catalog of indie games mapped to their studios, publishers, and funding, UDONGEIN X can be compared against similar Action titles and benchmarked on review counts and estimated sales.
Reviews
416
Positive
92%
Steam appid
1819230
Engine
Unknown
Players (snapshot)
Unavailable
Sales estimate
v1.014K to 32K
units (median: 23K)
≈ $39K to $91K modeled net revenue (fixed store-cut, refund, and regional-price assumptions applied)
+ - How is this calculated?
| Factor | Adjustment |
|---|---|
| base | +50 |
| year_2021 | +15 |
| price_$5 | -20 |
| positive_92% | +10 |
| final NB | 55 |
Heuristic display range: median × [0.6, 1.4]. Boundary protection: NB ∈ [15, 150].
Methodology & limitations
Sales estimates use an additive Boxleiter-derived heuristic against public Steam review
counts. They are not authoritative sales data, and the fixed display range
is not a statistically validated confidence interval. Actual results may fall outside it,
especially for deeply discounted or bundle-heavy titles. Algorithm version
v1.0. Read the exact method and validation status.
indielist estimates lifetime unit sales for UDONGEIN X at roughly 14,000 to 32,000 copies, with a median around 23,000, derived from its 416 Steam reviews using a multi-factor Boxleiter method (version v1.0). That median maps to approximately $65K in net revenue after Steam's 30% cut, regional pricing, and refunds. Unlike black-box trackers, the full calculation is shown on this page: a base review-to-sales multiplier is adjusted for release year, launch price, review sentiment, studio size, and genre, and every adjustment is listed so developers, publishers, and investors can audit exactly how the figure was reached. The range itself reflects genuine uncertainty — review-to-sales ratios vary widely between games — so indielist publishes a low, median, and high band rather than a false-precision single number, and treats free-to-play, heavily discounted, and bundle-distributed titles as having wider error margins still.
Price history
13 observed days · window low $4.99Across 13 observed UTC days from 2026-07-17 to 2026-09-04, the daily lowest tracked USD price across stores ranged from $4.99 to $4.99. The tracked-window low was $4.99 on 2026-07-17.
Real store observations · daily lowest tracked USD price across stores · missing days are not filled.
Where to buy
Affiliate disclosure- Steam reference$4.99 Buy
- Green Man Gaming
- Fanatical
- Humble Store
- GOG.com
Latest tracked store observations (2026-09-04 06:24 UTC), cheapest first. Prices may have changed since observation. Some are affiliate links — we may earn a commission at no extra cost to you. Learn more.
Platforms
windows
Genres
ActionIndie
Frequently asked questions
- How many copies has UDONGEIN X sold?
- indielist estimates UDONGEIN X has sold between 13,728 and 32,032 units (median 22,880), derived from its 416 Steam reviews with the white-box Boxleiter v1.0 method. The full breakdown is shown on the page.
- Who developed UDONGEIN X?
- UDONGEIN X was developed by Bar Holographic Otaku and published by Bar Holographic Otaku.
- Who published UDONGEIN X?
- UDONGEIN X was published by Bar Holographic Otaku, developed by Bar Holographic Otaku. See Bar Holographic Otaku's full catalogue and submission status on indielist.
- When was UDONGEIN X released?
- UDONGEIN X was released in 2021.
- How many reviews does UDONGEIN X have on Steam?
- UDONGEIN X has 416 Steam reviews, of which 92% are positive.
- Is UDONGEIN X worth playing?
- Steam players rate UDONGEIN X 92% positive across 416 reviews. indielist doesn't score games editorially; it surfaces public review sentiment and a white-box sales estimate so you can judge reception and reach yourself.
Ecosystem
Players looking for games like UDONGEIN X can compare it on indielist against semantically similar Action titles such as Terraria, Rust, Phasmophobia, The Forest, ranked by shared tags and genre rather than by ad spend. On the developer side, Bar Holographic Otaku's other releases and Bar Holographic Otaku's wider catalog are one click away, letting developers benchmark where UDONGEIN X sits among a studio's body of work and how its publisher's portfolio performs. Because indielist maps studios, publishers, games, and funding into one connected graph, the same UDONGEIN X page serves three audiences at once: players hunting their next Action game, developers studying how comparable projects were positioned and what they sold, and investors tracing which teams and labels are active in the space. A machine-readable markdown mirror of this page is published at the same path with a .md suffix for AI assistants, and its review, price, and sales-estimate figures are refreshed on a schedule rather than frozen at launch.
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