Some things i learned :
- it's a very good idea to remove your lantern as you don't want to paint such a giant target on yourself when moving in dungeon (plenty of enemies have companions and if all of them see you, you're in huge trouble), even if you don't have infravision (important to note that some enemies have it) you can always light up some lantern, torch or lots of various fire place in the rooms if you really need, stealth is a must do to increase your chance of surviving long enough.
- some enemies are way too strong for you to even try to fight them (by example you may run as early as floor 4 into 2 uniques "sinister young women" that are always together, don't even think of fighting them : they're incredibly resilient and will destroy your health and your allies healt in no time, they have amazing equipment on themselves and from my tests they even have a few healing potions to get back to full health , making your effort completely wasted) before getting several more levels and -really- good equipment, don't try to fight those overpowered enemies unless you have a -lot- of allies and summons.
- allies, don't play a loner, you always want allies, always ! more firepower is an absolute must in Zorbus considering how resilient (potions and various health restoration i saw enemies having) enemies can be. And in case you're in impossible situation they can be the meat shield you need in order to escape to safety.
- same as nearly all the roguelikes : never ever forget to run away far to heal, some things can halve your health in seconds (poison by example) regardless of your protections (perfect way to lose a character), use dark places to cut the view between your enemies and you, then move to other room far enough so the enemy give up pursuit, hide and rest/heal , don't try to still fight when you have less health than your enemy, your character is nearly always going to die. Rest at every opportunity if you're not in full health, you can never be sure you're not going to run into something that can 2 shot kill you soon.
- unless you enabled "Never Flee" in the options, enemies (and ally) of any kind will want to run away when they're severely hurt, you will need a ranged weapon in addition to your melee ones. It's a must, you can use ranged weapon to attract attention too , it's super important in some location in which there's only 1 entrance (all the rooms that feature a wizard and his golems seems to be a 1 door only, making them death trap as the wizard will always poison cloud/fire wall you to half-death in just a couple of second if you try to go only melee in plain light)
- don't try to open a chest or touch anything if you don't have full heath, rest before doing so, traps , mimics, animated furnitures can be deadly if you're already hurt.
- every time you see a good armor or a good weapon, take them even if you have much better on yourself, the reason is that each floor has a teleporter (the red ones) to the trading plane that contain some permanent chest, put the excess of item there (shops never buy anything that isn't a potion or at least a +3 item) so next time you get an ally (that is not an animal), you can move back to the trading plane and give them better equipment than they have.
Overall you want your ally to be strong to not die fast, precious meat shield.
But carrying too much weight put a burden on your skill, so leave things up to when you have cleared enough safe path between items and the teleporter so you don't run into an enemy with too much weight on you.
- a life saving tactic : with a ranged weapon shoot, move back until there's 1 or more square of distance , shoot, move back again until at least 1 square of distance and shoot. Best done in the dark so it works even better with creature without infra vision (though i guess it's harder to do if you can't see in the dark yourself) It takes a lot of arrows with those pea shooters that ranged weapon can be but with many of the "it will kill you 80% of the time in melee" monsters, it can seriously help.