disclaimer: i really did try my best to run this thing but after failing to get through the guix installed on virtualbox and with the fact that voting period ends in two hours its not happening. i watched the video someone posted in the comments of the game and just read everything they didnt include in it in notepad++
cant fault ya too much for not building for windows since i dont know how hard that would be with your setup but it is a tad limiting with who can play it
anyway terribly sorry about that since it seems all the comments have to bring up "running game hard :[" and you are probably tired of it

video game: great use of the public domain touhou sprites. you see em everywhere but they look nice and letcha focus on non-art things

pour one out for kanako, bringing corona to gensokyo has gotta be awful for pr. moriya shrine mighta just vanished because she gave up on getting faith

i have no idea why renko usami is in gensokyo like 50 years before she was born without maribel but i guess she is just pals with the gensokyo gals and thats alright

neat game (although i just read it did not do much playing)

I can't make it run.  I download it, extract the files, and there's nothing to execute.

To install tsukundere from source and run the game on my Ubuntu flavored machine, I installed guile-sdl2-0.6.0 from source, following the instructions and installing dependencies with apt-get. What the instructions don't tell you is that you'll also want to add the following line to your .bashrc:

export GUILE_LOAD_PATH=/usr/local/lib/guile/3.0:/usr/local/share/guile/site/3.0

or guile won't actually be able to find the sdl2 modules and tsukundere's config will fail.

Furthermore, the instructions for how to run the game with tsukundere appears to be wrong. The command

tsukundere -L $DIR -A $DIR -m "gensokyo rainbow incident"

should be

tsukundere run -L $DIR -A $DIR -m "gensokyo rainbow incident"

FURTHERMORE, when I try to run the game a second time, the above command fails, with the following error message.

Backtrace:
In ice-9/boot-9.scm:
  1736:10  9 (with-exception-handler _ _ #:unwind? _ # _)
In unknown file:
           8 (apply-smob/0 #<thunk 562102e31a40>)
In ice-9/boot-9.scm:
    718:2  7 (call-with-prompt _ _ #<procedure default-prompt-handle…>)
In ice-9/eval.scm:
    619:8  6 (_ #(#(#<directory (guile-user) 562102ee0f00>)))
In tsukundere/game.scm:
    420:2  5 (run-game #:game-name _ #:init! _ #:locale-dir _ #:time …)
In ice-9/ports.scm:
   445:17  4 (call-with-input-file _ _ #:binary _ #:encoding _ # _)
In ice-9/boot-9.scm:
   260:13  3 (for-each #<procedure 5621040425c0 at tsukundere/prefe…> …)
In unknown file:
           2 (run-hook #<hook 1 562103354f90 ?> #f)
In tsukundere/game.scm:
    65:22  1 (_ #f)
In tsukundere/game/internals.scm:
    45:25  0 (current-window)

As for the actual game (the one playthough of it I got), it's alright. It did the thing were it seemingly gave me a choice, but when I selected "no" I was railroaded into selecting "yes" anyway.  I realize this is convenient, but I'm still not a fan of when it's done this blatantly. It also sets a bad tone when it's the first choice, since it makes me suspicious of any other apparent "choice" the game presents me with.

The ending was very sudden, and I don't feel as if anything was resolved. I can't help wondering whether the X is actual harmful or not, etc, so I wasn't very satisfied with the sudden ending. I wish I could play it again to see if the other options resolve anything.