if you might be interested in spreadsheets in space then Eve online, but as a new player you'll always be behind everyone else as the skills are trained in real time.
Not that im trying to start an eve war.
I recently started this for the first time (nearly 2 months in now) and its blown my mind. If you get over the insanely hard initial start, find a corp and do something you want to do its phenomenal.
Its hard, unforgiving and complex. Possibly the last MMO like it. (A positive in my mind)
Its also a total sandbox too.
Its not free though requiring £10 a month approx sub. However once you earn 500-600m ISK a month in game (current cost of a plex) you can use it to pay for your sub so it does eventually become free.
As for always being behind. Not true. If you chose to specialize into something specific you like. you can comfortable "max" that area out in short order. The benefit 6-7 years of solid playing, is the number of specialties, making you extremely versatile (or cap ship capable) But it doesn't make you more effective than a relatively new player who is specialized in the same role (except when looking at cap ships, due to HUGE skill time requirements....naturally)
Its certainly not for everyone, the tutorial (despite its huge improvements) its still un-engaging and tedious making those first few days the hardest. but it really is a fantastic game.
My corp prouduces and smuggles illegal drugs (combat boosting effects) to large PvP war corps

Its excellent fun, huge risk. good money
