The game is very low maintenance, and you can start with very little, this is a good guide on starting low and earning fast.
Your accumulated SIM power will reward you liquid Hive, the current apr on that is a bit over 26% , it's been stable at that level since I've been playing. That apr is based on SIM being 0.0002 Hive ( it's a little above that now).
The good thing here is that SIM in ur Hive wallet, in the LP and in auction bids all count to SIM power, but at a 30 average of combined holdings, so boosting your SIM will take a little while to filter through
Then there is the return you can make from the game in SIM, that is a very variable thing, but the article above gives a good indication of what is possible with planning.
My advice, go very slowly until you understand the game, join the discord and get a free young citizen every day.
All in all I'm enjoying it.
Check out this good beginner's guide by @libertycrypto27 , if you already haven't
RE: [ENG/ITA] Golem Overlord: My First Enigma Reward & Purchased and Opened a Tactician Trove: What Did I Find?