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Harmonist: Dayoriah Clan Infiltration
Stable game
Developer anaseto
Theme Fantasy
Influences Boohu
Released 2019 May 11 (0.1)
Updated 2023 Aug 23 (0.5.1)
Licensing ISC
P. Language Go
Platforms Linux, BSD, Windows, Mac, Browser
Interface ASCII, Graphical tiles
Game Length ~ half an hour
Official site of Harmonist: Dayoriah Clan Infiltration

Harmonist: Dayoriah Clan Infiltration (Harmonist) is a stealth coffee-break roguelike game. The game has a heavy focus on tactical positioning, light and noise mechanisms, making use of various terrain types and cones of view for monsters. Aiming for a replayable streamlined experience, the game avoids complex inventory management and character building, relying on items and player adaptability for character progression.

Your friend Shaedra got captured by nasty people from the Dayoriah Clan while she was trying to retrieve a powerful magara artifact that was stolen from the great magara-specialist Marevor Helith.

As a gawalt monkey, you don't understand much why people complicate so much their lives caring about artifacts and the like, but one thing is clear: you have to rescue your friend, somewhere to be found in this Underground area controlled by the Dayoriah Clan. If what you heard the guards say is true, Shaedra's imprisoned on the eighth floor.

You are small and have good night vision, so you hope the infiltration will go smoothly...



  • Short coffee-break runs (around half an hour).
  • 8 levels deep dungeon (+ 3 optional levels), 3 distinct map generators, 23 monsters, 7 magical cloaks, 6 magical amulets, and 22 magaras (evokable magical items).
  • Both graphical tiles (web or SDL) and terminal ASCII versions. Animations. Simple controls. Mouse support. Mouse-friendly compact 80x24 layout. Automatic recording for later replay.
  • Light and noise stealth mechanics. Monster footsteps can be heared.
  • Jump by propulsing against a wall!
  • A main story narrative, and many short lore texts.
  • No XP, no upstairs, no automatic regeneration, no grinding/farming.
  • Fully destructible terrain (wall destruction, foliage fire).
  • Simplified inventory management (e.g. no more than one cloak or amulet).
  • Many terrain features: dense foliage, doors, tables, barrels, windows, holes in the walls, trees, chasm, …
  • 9 distinct magical stones that may be activated once with some special magical effect.




While the game is heavily influenced by Boohu, because the game started as a fork of Boohu's code, it's a very different game. The main webpage gives some more details about other possible influences.