Gateway to Apshai is a video game for the Commodore 64, ColecoVision, and Atari 400/800 home computers, developed by The Connelley Group and published by Epyx as a prequel to Temple of Apshai. It is, in principle, a more action-oriented version of Temple of Apshai, with smoother and faster graphics routines, more intuitive controls, fewer role-playing video game elements, and fewer room descriptions.

The player is initially armed with a dagger and clad in leather armor. As play progresses, he or she obtains new weapons, armor, potions, eye glasses, and scrolls containing magical spells. Various enemies, ranging from simple rats and snakes to giants, inhabit the dungeon. The player must kill them with weapons or magical spells.

The levels become progressively harder to survive as the player descends deeper and deeper into the dungeon. Each dungeon is covered in complete darkness that illuminates as the dungeon rooms and corridors are explored. The Gateway consists of 8 levels, each consisting of 16 dungeons, each consisting of 60 rooms, for a total of 7680 rooms.

You get approximately six and a half minutes to explore each level. Once the time passes, if you are still alive, you are advanced to the next deeper level.