Curated by taste and lineage

Each turn you place one bomb from your hand and set it off, chaining blast into blast to dig through the dungeon, and a solo developer with over a decade of free browser games behind them has never once been written about in the West.

A chain-reaction bomb-placing roguelite made and self-published solo by developer TUKUCHAU-OJISAN (also known as hothukurou), a prolific individual creator who, per their own official site and Japanese indie-game community listings, has spent over a decade publishing free browser games in Japanese at a near-monthly pace, while quitting a company job to test whether making games could support them full time. Per Steam's own listing, each turn you place a bomb from your hand and set it off, blasting coin blocks for money, defeating enemies, and digging deeper into the dungeon; bombs vary in power, blast range, and special traits, coins let you level up and unlock stronger ones, and fusing bombs together increases blast radius or passes on special effects, letting you build toward a single custom 'ultimate bomb.' Monsters buried in the dungeon gradually advance, and if they reach the bottom, you take damage; the goal is destroying the required number of blocks before your HP hits zero. Their previous game, Dungeon Destroyer, used different mechanics, a roguelike crossed with a path-connecting puzzle, and per the developer's own account was reworked into this more immediately satisfying bomb-and-chain-reaction design as a deliberately independent follow-up, not a direct sequel. Priced at ¥625, it is Positive at 100 percent over 25 reviews (25 positive, 0 negative); Steam's display rules mean a title needs at least 50 reviews before an 'Overwhelmingly Positive' label can appear, so a perfect score this early still shows as plain 'Positive,' a fact this pick states plainly. It is a paid title, not free, fully launched and not in Early Access, with no AI-generated assets, and per Steam's own content descriptors, nothing sexual. It supports English along with Japanese and Simplified Chinese, and of its 25 reviews, 21 (84 percent) are in Japanese against just 4 (16 percent) in English; a dedicated check of English-language outlets, including AUTOMATON WEST, Kotaku, PC Gamer, Rock Paper Shotgun, IndieGamesPlus, and Thinky Games, turned up no editorial coverage of this game or its developer at all, a more thorough kind of unfound than most picks on this site, and a deliberate contrast with an earlier candidate this site passed on for having a developer already known in Western indie circles through a previous, celebrated game.

Published 2026-07-23

01First, the one feeling

• Per Steam's own text, the entire loop reduces to one action, place a bomb and set it off, so the strategy lives entirely in which bomb from your hand you commit to a spot, and in watching one detonation clip into the next.
• Fusing bombs to inherit range and special effects toward a single custom 'ultimate bomb' turns the deck itself into the thing you're slowly building, so the dungeon underneath starts to feel less like an obstacle and more like the proving ground for whatever you've fused together.
• This is a solo creator's second attempt at a bomb-roguelite after a first one they say was hard to enjoy until you were already deep into it, and knowing they rebuilt it around a simpler, more immediately satisfying core recolors every 'place a bomb, watch it chain' turn as a design lesson already learned.

02Who this is for (and who it is not)

03The roots of this taste

100% positive·only 25 reviews — yet almost no one has found it

04Make this gem shine

If it speaks to you, check it on Steam and give it your first pass. Your push is what makes a buried gem shine.

05The bloodline of this taste

• SUPER BOMBERMAN COLLECTION Root
• Dungeon Bomber You are here
  • Read-and-build games another taste