Haven't tried Mines since I am hooked on slots, though I tried to play tower and I seldom goes above level 3, lol. It looks like there is an imaginary barrier after level 3 in which whatever I pick is an empty cell. That, or I just suck on guessing games T_T.
You should give it a shot. I'm not big fan of Mines nor slots but I have tried it out since playing on roobet always lots of fun. On roobet I played crash a big time of my entire day! For me Crash is working quite simple, it consists of a continually expanding line going up and multiplying your bet. This things make me insane all of the time. Crash Rocket is love!
I rarely go over level 3 too! In my opinion towers and mines are similar games, in both games you try to not hit the wrong field! Interface is different, and on this I give a little advantage to towers, I like towers a bit more, and I play it a bit more than I play mines, but I play both games from time to time.
As Sejent05 I like to play slots more than all other games! And slots are always my number one choice, I play other games when I have a break from slots, or I don't have enough funds for slots!