Traveller can be like that. I never got that far into it, unfortunately. In games like that (or maybe in all games) it's important that all players are happy w

Traveller can be like that. I never got that far into it, unfortunately. In games like that (or maybe in all games) it's important that all players are happy with the level of crunch. It's fine if everybody engages with the Spreadsheets in Space, it's also fine if everybody prefers to handwave it. But if some engage and some don't, you've got a problem. I was afraid my players would consider Shadowrun too heavy and too much bookkeeping, but everybody was willing to commit to it and make it work. And I still handwave a lot because the Shadowrun rules are a mess.