Weird, we just tried and were able to download the game. You may want to try using a VPN or if that's not an option for you — you can download the game on F95 Forum and if you don't have an account there, just download from MEGA link from there:
https://mega.nz/file/syxC1LyL#40mwT1XlgnNtQl9IWc-q45wPTLm_UUN1vHNbI-_gJZM