I couldn't get it to work unfortunately T.T I think someone else has provided the same error code so I wont place that here, but I think from the game page and screenshots it looked really promising as a concept. It's a real shame I couldn't get it working but completely understand the struggle (it took us maybe 4 hours to get a working build for some reason). It looked like it had a lot of promise and probably took a lot of work to get all of it working in 4 days, please do reply in case you are able to get a working downloadable version and I'll check it out :)
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I had your comment on my mind for the last 4 hours battling with .bat files makefiles, fucking emsdk and whatnot, so I appreciate the time you took to write it, thanks! You can play it here, I finally made it, not on time for the jam, but still, I would greatly appreciate the feedback :) https://memetococ3.itch.io/reupload-red-swarm