I've heard this game be called a mishmash of a Facebook game and XCOM combat. I haven't played XCOM yet, but I can believe it. I didn't give Omerta a stellar rating because it's still in need of some work. I don't know how the Steam version fared, but I needed a patch from GOG to advance beyond the first mission, and even then there were some problems (no cars and no trees but shadows remained on some maps, some buildings apparently did nothing or had broken features). Worse was how almost everything you did in one map had so little effect on the next. Did you grind up a bunch of both currencies, max out your resources, max Liked/Hated? Good! Only half of your Liked/Hated stats carry over and that's it. Not to mention sim stats have so little impact on the combat phase. If you assault the police precinct at zero or five stars, you still face the same opposition. Conversely, the only time combat affects the sim side is if your allies get incapacitated or jailed, or the heat boost you get for fighting at all. Whoo. And honestly, Omerta isn't really what I'd call fun. The sim side is really boring and while you can eventually work yourself into a state where your henchmen are constantly in motion doing stuff around town or if you control every building in the map, it's meaningless. Once you have a stable source of money, the police are zero threat and you can perpetually hold off most scripted events by intentionally not completing the current objective. Nobody comes around to challenge you, but I don't know if this changes in sandbox mode. Combat is all right, just the difficulty is random at times. I know several people went through no problem, but I had to slog through the game for a few months due to disinterest, so that was enough for me. I'm glad I gave it a chance, but I'm not sure how my opinion would change if I actually paid for it. You might be interested in this for the setting, but the gameplay didn't carry it for me.
