Once upon a Dungeon

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Once upon a Dungeon

Short description

Explore dark dungeons, defeat challenging creatures and collect unique loot in this hardcore traditional roguelike game.

Developer
Koto Games
Publisher
Koto Games
Release
Fri, Jan 19, 2018
Price
$4.99
Reviews
22
Positive
95%
Followers
386
Owners (estimated)
0 – 20K
Concurrent players
n/a
Genres
Indie, RPG
Tags
RPG Indie Rogue-like Traditional Roguelike Dungeon Crawler Turn-Based 2D Difficult Loot Singleplayer Perma Death Hack and Slash Cartoon Crafting Dark Fantasy Retro Medieval Grid-Based Movement Procedural Generation
Revenue (estimated, gross)~$5ksomewhere between $2k and $9k · roughly 440–2K copies

Review count and SteamSpy's owner range agree well enough to narrow the estimate down to this band. Multiplied by the $4.99 launch price — there is not enough price history for this game to weight the copies by what they actually sold for. Before Steam's cut, VAT and refunds. How these numbers are calculated.

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History

Tracking started Aug 21, 2026. Charts appear once there is more than one data point — nothing has changed since.

How crowded is this niche?

How full the niche around Once upon a Dungeon is — measured on the tags it leads with, against every other combination on Steam.

±?? RPG + Indie + Rogue-like

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Similar games that found an audience

Games sharing at least 3 of this title's leading tags, with enough reviews to have gone somewhere. Ranked by how much they overlap, not by how big they are. − missing and + extra mark the tags each one does not share with Once upon a Dungeon. Studio counts the titles that developer has released — the closest thing to production scale that public data allows. It is not a budget, and nobody publishes those.

Image Name Studio Shared Tag difference Price Reviews Positive Released Revenue (estimated)
Dungeons of Dredmor Dungeons of Dredmor Gaslamp Games, Inc. first game 6 same tags $7.99 3,691 94% Wed, Jul 13, 2011 $1.1m
$1.1m – $1.7m
MidBoss MidBoss Kitsune Games 4 titles 6 same tags $14.99 213 84% Thu, May 25, 2017 $131k
$58k – $232k
Shattered Pixel Dungeon Shattered Pixel Dungeon Shattered Pixel first game 5 − Indie + Mystery Dungeon $9.99 2,050 95% Wed, Mar 23, 2022 $873k
$388k – $4.7m
Dungeonmans Dungeonmans Adventurepro Games LLC 3 titles 5 − Dungeon Crawler + Grid-Based Movement $14.99 1,085 90% Tue, Dec 09, 2014 $646k
$287k – $2.6m
Rogue's Tale Rogue's Tale Epixx.org first game 5 − Dungeon Crawler + Adventure $6.99 651 74% Fri, Mar 28, 2014 $304k
$304k – $316k

There are more like this. Your plan shows the 5 closest neighbours; Plus and Pro show up to 100 — enough to see the shape of a niche instead of a sample of it.

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