If your nervous about how complex this game is, don't be. It's all about conquering each level with the best equipment you can find. Not only that, but there's also hidden treasure and merchant shops to find as well. This walkthrough assumes that you're playing on its easiest difficulty and the latest is the Ultimate Edition with the Hero Edition skin additions from the DLCs that you've downloaded for your respected console and PCs.
Also, you're not alone at this, you can check if you have special equipment and choose any pets that would help you in your quest in completing the level. Sort of like the Baldur's Gate Dark Alliance series. You can also play in co-op should dealing with the crowd is too much for you to handle. Lastly, this walkthrough will also tell you how to unlock hidden levels that you'll find throughout this game, given how many levels this game has in total.
Pick your hero and get ready to fight in your first level adventure!