I really like an obscure game with an odd mechanic in it. I want to make a clone of it so I can keep playing it, even if its graphics and audio are inferior to the original!

This game has a highly unusual mechanic though. It relies on voice-acting to relay info to the player (or at least the opponent, it used to have online features). Not having this signalling would render half of the game's mechanics unusable.

Obviously, I don't have the ability to add voice acting to my game. So what other method can I choose? Having some sort of graphic or text pop up on the screen indicating the opponent's action would require the player to divert their eyes to elsewhere on the screen. I could have unique sound effects for every action, but there's literally dozens of them! Besides, it would take quite a while to learn which sound is associated with each action. With voice acting, the character is literally just calling out the name of the action they're performing!

Is there any other method I could use to relay this information? Or is a game like this simply impossible to play without audio? I mean, how many games are there where you literally couldn't play them at all if you're deaf? Some sort of audio cue seems a practical necessity.