Immortal Heroes has only two play restrictions:

(1) If the character dies, that’s IT! That character gets deleted. Start a new character (although I usually reuse the name, good names are hard to come up with).

(2) The game is played straight through (not necessarily at one sitting). No restarts or new games to redo levels to gain experience or equipment. In single mode the game is saved at the end of one session and restarted at the same point at the beginning of the next. n multi mode, the game is exited when level 4, 8, 12, or 16 is finished and a new game is started by going down to the next level (or to level 1 of the next difficulty after finishing level 16).

Warrior:
He has devoted his life to the study of arms. He scorns the use of a ranged weapon as being cowardly. Never had the opportunity or interest to learn magic, but can heal himself and others as a result of years of experience in receiving some of the carnage he deals. (Town Portal I consider a utility spell – it’s not necessary, but who wants to waste a bunch of game time walking up stairs? Identify can go either way, if you prefer, limit identify to Cain).

Spells (From scrolls only): Town portal, identify, healing, heal other
Armor: All
Helms: All
Shields: All
Weapons: All except bows and staffs

Rogue:
An expert with the bow, she also specializes in some of the talents of a thief. She has had limited training in the arts which enable her to move rapidly (teleport), avoid or disarm traps (telekinesis), and spy on her opponents (infravision). Much like the warrior, her experiences have taught her some healing arts. The need to move rapidly limits the armor she can wear, and the need for clear vision to aim her bow limits her headgear.

Spells (From scrolls or books): Town portal, identify, healing, heal other, telekinesis, teleport, infravision
Armor: No type of plate
Helms: Cap, skull cap, crown
Shields: Buckler
Weapons: Dagger, short sword, club, all bows

Mage:
His years of intense mental preparation has left him little time to develop physical fighting skills and the strength required for them. Any type of magic, he can master. His total dependence on magic is both his strength and his weakness.

Spells (From scrolls, books, or staffs): All
Armor: Rags, cape, cloak, robe
Helms: Cap, skull cap, crown
Shields: None
Weapons: Dagger, club, all staffs

Note: As far as unique items are concerned, let the above lists and comments be your guide.