There are a number of hits that seem relevant when I do a search for "android version of dosbox", and once you have dosbox installed you should have access to a bunch of old DOS-based text games, including versions of Colossal Cave, I believe. I have not tried this personally, but I use dosbox on Windows and iPadOS for this purpose
https://duckduckgo.com/?q=android+version+of+dosbox&t=newext&atb=v341-1&ia=web ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN