Story file, stable version (release 9) *
The recommended version.
Requires a Glulx interpreter. Visit IFWiki for download links.
Story file, latest beta (release 10 beta) *
Contains Kerkerkruip.gblorb
Permanent link to the latest beta release of Kerkerkruip.
Requires a Glulx interpreter. Visit IFWiki for download links.
Story file, release 1
The original version as entered in the 2011 IF Comp
Requires a Glulx interpreter. Visit IFWiki for download links.
Beginner's Guide
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Brief note from the author
Videos note
Introduction to the videos, where the author plays Kerkerkruip and explains the basic concepts of the game.
Source code repository
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* Compressed with ZIP. Free Unzip tools are available for most systems at

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by Victor Gijsbers profile

Dungeon crawl

Web Site

(based on 64 ratings)
10 reviews

About the Story

Kerkerkruip is a short-form roguelike in the interactive fiction medium, featuring meaningful tactical and strategic depth, innovative game play, zero grinding, and a sword & sorcery setting that does not rehash tired clichés.

Game Details

Language: English (en)
First Publication Date: October 1, 2011
Current Version: 9.0.1
License: GPL
Development System: Inform 7
IFID: AC0DAF65-F40F-4A41-A4E4-50414F836E14
TUID: f7zdhxmiraht53d1


8th Place overall; 3rd Place, Miss Congeniality Award - 17th Annual Interactive Fiction Competition (2011)

Winner, Best Use of Innovation; Winner, Best Supplemental Materials - 2011 XYZZY Awards

13th Place - Interactive Fiction Top 50 of All Time (2015 edition)

23rd Place - Interactive Fiction Top 50 of All Time (2019 edition)


Kerkerkruip 9 released April 13, 2014
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Member Reviews

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Number of Reviews: 10
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Most Helpful Member Reviews

24 of 24 people found the following review helpful:
An exciting new take on dungeoncrawling., May 17, 2013
by Wade Clarke (Sydney, Australia)
Related reviews: IFComp 2011, Inform, RPG

I had a problem during the 2011 Interactive Fiction Competition. I was supposed to be getting a move on and reviewing all of the other entrants' games, but I kept procrastinating by sneaking away to play Kerkerkruip. By the time the competition was over, I had played it at least 50 times in my quest to complete the game on Normal difficulty. This is testimony to Kerkerkruip's addictiveness, which grows out of the stiff but strategically overcomeable challenge it presents and the relatively infinite pool of circumstantial variations it offers to dungeongoers. The latter quality is what makes the game really memorable and anecdote-worthy once a player has got a handle on its mechanics.

A moment's divergence for the consumer guide part of this review: Kerkerkruip is certainly not a traditional IF game or text adventure in which the player solves unchanging puzzles en route to particular goals while possibly becoming involved in a narrative the author has laid out. This is a high-stakes game of Dungeons & Dragons adventuring in randomly generated dungeons. At the same time, it is delivered by text and controlled by a parser, and uses explorative elements in some typical adventure game-like ways. In all of these capacities, it is obviously from the school of text adventures, and not completely unlike a combat MUD or a modern incarnation of Eamon, though a plotless one. Also note that it is essential to at least read the Beginner's Guide before playing (I found this three page guide to be the easiest way into the game, as opposed to traveling through multiple inline HELP menus) or Kerkerkruip will promptly kick you to the pavement.

Your goal is to find and kill the evil wizard Malygris of the dungeon Kerkerkruip. You begin armed with a rapier; more significant weaponry and equipment must be found in the dungeon. Usually there will be about five other groups of monsters lurking around, and it is only by defeating these monsters and absorbing their powers and health in a wisely chosen order (new powers only accumulate if they are weaker than powers you already possess) that you will have a hope of becoming powerful enough to defeat the wizard. The dungeon contents and layout and the roster of monsters change every time you die or restart. You can't save the game except to take a break, and there is no UNDO. These danger-increasing elements are common to another genre of game Kerkerkruip announces that it belongs to: the roguelike, named, unsurprisingly, after a particular game called Rogue.

Movement is handled with the traditional compass commands, augmented by a "go to" command and a handy "remember" command, but the combat makes use of the ATTACK system originated by the author and is divided into Action and Reaction phases. By working with just a handful of well balanced temporal elements, Kerkerkruip ensures each decision you make about what to do next in battle carries significant weight. Should you Attack now, or build up the strength of your next attack by pausing to Concentrate? You can try to build up to three levels of concentration, but if you're struck in the meantime, your concentration will be broken. On the other hand, if you never concentrate, your attacks won't grow strong enough to finish off the bad guys before they finish you.

This core system is simple enough for anyone to understand, but its application in any moment is modified by a huge number of variables, amongst them: the geography of the room you're in (e.g. it doesn't pay to Dodge while fighting on a narrow bridge over lava), the nature and habits of the enemy you're facing (e.g. animated daggers attack ceaselessly and break your concentration as often – the jumping bomb will never break your concentration, but if it gathers enough concentration itself, it will explode and kill you instantly), the Tension in the air (how long has it been since anyone last struck a blow?), your current status and arsenal of powers, and the interference of a further array of supernatural stuff like fickle dungeon gods or weird summoned entities.

The sum effect of the play amongst all these interrelated elements is that Kerkerkruip is capable of generating the exciting sense that with almost every move you make, the whole game is at stake. The circumstances of danger can rearrange themselves into so many different patterns that a lot of your battles will strike you as uniquely memorable, even when you're dealing with the same small roster of monsters over and over again. You can marvel at a seemingly (or actually) brilliant series of moves you make that succeed in resuscitating your prospects when you're down to 1 hp. Similarly you can laugh at the results of a particularly bold, stupid or unlucky move that backfires spectacularly, or at some confluence of events so extraordinary that you'll feel like telling someone else about it. You will certainly die far more often than you will win, but this is a game where experience, exploration and repeat plays really pay off, and the strategic element is always vivid, the prospect of victory always tantalising.

Ultimately, Kerkerkruip is an essential and massively replayable game for dungeon and combat fans, and also demonstrates the kind of novelty and elegant design that is inspiring in general.

Note: this review is based on older version of the game.

11 of 12 people found the following review helpful:
Rogue-tastic!, January 3, 2012
by Joey Jones (UK)

When I first played this game, I played it six times. That's how hard it is. That's how addictive it is. Kerkerkruip is a rogue-like text adventure, in which you travel about a randomly generated dungeon, killing enemies, picking up equipment, employing tactics and dying. A lot.

The game isn't a perfectly smooth interactive story where you play out complex motivations while unveiling a carefully crafted plot. It's not trying to do that. So of course the writing is sparse, and the synonyms sparser. That's goes with the territory. If I was making the game, I would have added an additional layer of randomisation to the monsters- giving named characters a different name and apparel each time and so on. As it was, there were enough antagonists that the game remained fresh through six play-throughs, and I was pleased that some enemies (like the Reaper) changed their weapons. The real joy of the game is that it's more than a complex dungeon-crawl simulator, it's a puzzle. Figuring out which enemies to fight, how, and in which order are vital to successfully completing the game.

Every time I played Kerkerkruip I discovered something new, died in an interesting way and wanted to go back for more. All in all, a great roguelike! Two thumbs up!

8 of 8 people found the following review helpful:
Excellent and innovative, August 8, 2013

I may as well nail my colours to the mast: I'm a big fan of roguelikes, and Kerkerkruip does an excellent job of transferring the roguelike dungeon-crawl experience to a text medium. It reminded me a lot of "The Reliques of Tolti-Aph", another game I love (though I recognise that it's an acquired taste), but is easier and less unforgiving. The enemies and many of the items are innovative.

It's not the kind of game you play for the prose or the mood. The writing is workmanlike a lot of the time, but that doesn't mean that it's bad (in case anyone were expecting bad writing from Gijsbers): there are some excellent descriptions (I particularly like the mirror room and the phantasmagoria). Battle descriptions are nice and varied. Humour is sparse, but excellent.

Is it a perfect roguelike? Is anything on this earth perfect? No. The small size of the game world, while necessary (and obviating the need of a map, or of hours of free time) means that the game doesn't have one of my favourite features of roguelikes: the exploration. The randomly generated dungeon means that there is no real sense of build-up: it is possible (at least in earlier versions) to spawn in the room next to the final boss. There is no complex plot, and little sense of the wider world of the game, other than some scattered sword & sorcery tropes. (Though, again, this isn't a game you play for the plot or worldbuilding.)

Those quibbles aside, I love it. Highly recommended if you enjoy RPGs and have fifteen minutes to spare. And finally, kudos to mynheer Gijsbers for continuing to develop and upgrade this game. He has created something innovative and wonderful.

See All 10 Member Reviews

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The following polls include votes for Kerkerkruip:

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I'm looking for a good interactive IF that has good rpg elements

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This is version 25 of this page, edited by Victor Gijsbers on 13 April 2023 at 7:17am. - View Update History - Edit This Page - Add a News Item