The Temple of Apshai followed the general idea of Dungeons and Dragons, with lots of monsters to meet in battle and treasure to be found.
You can start from scratch, with your character given a random 1 to 18 for six basic attributes: Intelligence, intuition, ego, strength, constitution and dexterity, together with a number of silver pieces. You can enter a previously saved character from disc. Thankfully this interpretation has superior graphics attributes of a character from an earlier game. You can restore a previous game saved at any point within Apshai.
Each realm has four levels. Dungeons and Dragons followers will find levels 1 to 2 are appropriate to third level, and the lower levels to fourth and sixth level characters. There are special commands, such as examining a wall for secret doors, opening doors, searching for traps, picking up treasures, listening for monsters, talking to monsters, healing with salves or elixirs, checking the and a few healing salves, you are inventory of your treasures or saving the game or character for future use. Most levels of each realm have 50 to 60 rooms, so there is plenty to explore. Some monsters are tied to particular locations, but others wander around looking for the odd meal. The innkeeper will pay you for any treasure you have collected so you have a chance to add to or improve your equipment.
There is a little more to Apshai than straightforward monster bashing, but nowhere near the depth of puzzles and quests to be found in more modern offerings such as Ultima and Bard's Tale.