You can level from 1-13 in Forest Haven. Then run over to Dark Forest and you can go from level 13-18 for free. This will let you have a little more experience with the game, then you can decide if you wish to purchase platinum on additional dungeons, or obtain platinum for free using the Tapjoy feature.

All additional dungeons cost 10 platinum, so you can take a look and calculate roughy how much platinum you are going to need, and which dungeons you want to purchase. You can get to level 56 without spending much, and trust me..it's worth it

any questions feel free to shoot me a message