Can't you just decompress the rar file?
Viewing post in Lyndaria: Lust Adventure (Adult game NSFW 18+) Furry comments
Apps exist to do that, so, yeah.
Don't limit yourself to the Demonplex Citadel (Google "Play"). Look around, Zeha. There are <cost-free, ad-free, telemetry-free> apks out there. Try appsapk or f-droid; or just plain yandex or startpage, if you need.
Moving on, it'd be great if the Lustrous Team could present a Linux build. It's the only ecosystem that doesn't shackle users in biometrics mining, just at the cost of ease-of-use.