Ascii Sector is not precisely, I think, a roguelike. Rather it falls into the nebulous category of roguelikelikes, in this case a game presented via ascii graphics and with some randomised elements (I believe), but lacking in permadeath and with less procedural generation than is typical of roguelikes. I think.
Not hugely expert on this game (I played it exactly once, in a previous attempt at roguelike roulette, and haven't looked in on it again until now). Ascii Sector is based on Wing Commander: Privateer, and you play as an inhabitant of the agricultural planet of Basin, who has just saved up to buy a crummy little starship and now hope to travel the stars as a person for hire. Gameplay involves buying things, transporting things, selling things, and fighting things in the name of profit and survival.
(the included manual feels like a fairly lengthy read at ~19 pages, but it felt needful to do so, as I was a bit lost as to how to approach ASCII Sector)
( Enter for image-heavy noodling around )