A downloadable game for Windows and Mac OS X

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Imagine a world that only exists when you see it.
Whenever you look around you see something completely new coming to life . This is the world of Sector A23.
A beautifully generated cave system, filled with alien plants and mysterious creatures, giving room for endless exploration.
Anything you see has never existed before and will stop existing as soon as you dare to look away.

Sector A23 is an experimental game we created as a 2nd year study project.
Currently this a demo version, but we work on it and will release a more extensive version in 2017!

Jonas Delleske, Balint Mark, Joao Oliveira, Marek Skudelny, Lena Werthmann.

The awesome sounds were created by our friends at Dürbeck & Dohmen.

Thank you for playing!


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Click download now to get access to the following files:

SectorA23_Mac.zip 56 MB
SectorA23_Win.zip 44 MB


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Very impressive and strange!

The eyes are so Thief (or was it Thief 2?)

Gotta love those dinos!

Not sure what I think about the ending. I do wonder if there's another...


Thank you for your review! And for the video, this is amazing!
(You're actually one of the few people who found the end that fast!)

Currently we're still working on everything. The end was a last-minute decision, and we will definitely change it drastically!
But multiple endings are actually a great idea. We planned to put in actual ways to die, but we can very well imagine other endings as well.

Thank you so much for the input!

All the best!