What ASCIIvania lacks in vampires, whips, and lovably horrendous dialogue, it more than makes up for with letters. You collect letters. You solve puzzles involving letters. You are letters. All of them, even. It’s a pretty simple premise, actually: Half-formed words act as barriers, and you have to complete them to make them disappear back into the great alphabetically organized beyond. The rest – despite looking like a command prompt combined with the frenzied scrawlings of a mad man – is pretty traditional Metroidvania. You run, you jump, you collect powers (double jump!), and, er, backtrack. There is definitely a lot of backtracking. I molded letters into thoughts after the break. They will provide you with the greatest incremental puzzle-solving power of all: knowledge.