Yes you can get back everything you loose.
You will have to crosses on the map where your bodies are.
You can also save and exit the game then go back and your stuff will be right there next to your chest in town on the ground so you just click on it.
You can do this anytime you die so you don't have to go back to the area if you were surrounded by enemies.
I love that chest which will be with you in any town you will travel to. The stuff is safe in there and don't forget to deposit you coins so when you die you don't loose all the money you had with you. In this game the only thing you really loose is the money and the rest is still there with your body.
Well my assassin is now ready to go into the Monestary. Moving on...hehe.
I like the sorceress and the Necromancer also because they can summon help and don't have to do very much if anything at all hehe.
I also like my very fast Axe with fire,cold and poison damage on it.
Look for slotted items in armor or weapons so you can insert the gems you find or stuff like skeleton head which give you extra damage or ruin stones also.