Thirst for blood is a Glulx interactive fiction game written with Inform 7 and is © 2026 by Zeno Pillan. It was an entry in IF Comp 2026 where it took 32nd place.
In this short game, you play as a female mosquito. You have just flown into a second-floor window where a living human is sitting at their desk. You can taste the CO2 from their breath. Fill your midgut with fresh human blood and you can be on your way.
This solution is by David Welbourn, and is based on Release 1 of the game.
SPOILERS AHEAD. Reading a walkthrough prematurely can sometimes diminish one's enjoyment of an interactive fiction game. Please make an honest effort to play the game before reading this walkthrough.
>> SPACE
East wall
> about. credits.
> x me. i.
> x human. x window. x desk.
> d.
Floor
> s.
Forest
> x legs.
> u.
Leg's skin
You automatically feed on arrival, but you sense you need to stop when your midgut is half-full.
> d. w.
rucksack
> x papers. (+1)
> e. n. n.
Cave
> x emeralds. (+1)
> s. u.
Flying in the middle of the room
> w.
West wall
> x door. x key. x keyhole.
> x bookcase. x holes. x books.
> x cutter. (+1)
> x vest. (+1; Congratulations!)
> n.
North wall
> x people. n. x poster.
> d.
White Hills
> x hills. x dolphin.
> u. u.
Ceiling
> x lantern. in.
Lamp
> x shadow. x bulb.
> out. s.
Over human's head
> x face. x hair.
> d.
Human back
> s.
Neck's skin
> n. e.
East wall
> e.
*** THE END ***
Also:
This is the response to CREDITS:
For this interactive fiction my thanks go to Ceci (my wonderful girlfriend) for organizing all our vacations that are always a source of relaxation & inspiration.
A huge thanks to the people who tested my game providing super useful feedback and suggestions: Francesco faf, Andrew J, Piergiorgio d'Errico.
As a mosquito, INVENTORY is redirected to an examination of your midgut which you want filled with blood. Visit both Leg's skin and Neck's skin to accomplish that, then you may leave the room via the window in the east wall.
This is the response to SCORE:
You have so far scored N out of a possible 4, in T turns.
Points are awarded as follows:
This walkthrough is provided free of charge since the work it's based on has less than fifteen locations. Please consider it a thank you for your support!
I create larger walkthroughs too! Please visit my Patreon account if you're interested in helping me create more interactive fiction walkthroughs. I appreciate all the help I can get! Thanks again.

Ko-Fi is a way to send me small one-time donations. Every little bit helps, and thank you!