The old school roguelikes that were built when they could count on a keyboard all have heavy keyboard dependencies. Nethack and Angband both have command sets that extend beyond the <i>case-sensitive</i> letters. (Protip: When forgetting what letter a given command is, do <i>not</i> just start hitting keys looking for it!) Of course you tend to use a subset in play, but even that subset can be quite large.<p>If you want to play a roguelike on a portable, you&#x27;ll need to play something built for portable. I have no specific recommendations... unfortunately, I can&#x27;t help but compare things to Angband (my drug of choice) and everything ends up too simple by comparison. That&#x27;s just my problem, though. Android certainly has a lot of roguelike things on it, the Web is full of reviews and recommendations: <a href="https:&#x2F;&#x2F;www.google.com&#x2F;search?q=best+android+roguelike" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;search?q=best+android+roguelike</a>