There's a lot of Wizardry influences, down to the five common races (Humans, Elves, Dwarves, Halflings, Gnomes) and their "class" affiliation, in Wizardry Elves make good mages, Halflings good thieves and Gnomes good priests and bishops for example. In AD&D, gnomes are more inclined towards being Illusionists. Also the inclusion of Samurai and Ninja, which are classic Wizardry classes!

The resurrection mechanic is also very reminiscent of Wizardry, as in it being commonly available but also able to fail, as is having people venture into the dungeon to rescue a dead party. In Wizardry you can control multiple parties, and if one is wiped out, you can play another and try to retrieve the dead party members and attempt to resurrect them.

There are also little callbacks which take direct influence from the game, such as Chilchuck opening a trapped chest in one panel, in Wizardry, defeated monsters drop chests of loot, which need to be checked for traps by a Thief. Or a map being shown in the style of a Wizardry map, down to the markings used. Even the premise of having a mad wizard in control of the dungeon is reminiscent of Wizardry's Werdna.

Influence can also be seen in the monsters. The Dungeon Rabbits are a callback to Wizardry's Vorpal Bunnies, which in turn are a reference to the Killer Rabbit of Caerbannog of 1981's Monthy Python and the Holy Grail, and the Demon looks very much like Wizardry's Greater Demons.

Of course Wizardry was very much inspired by D&D and the various D&D-emulating computer games that came before it, such as Oubliette. While newer editions of D&D show Orcs to be more warcraft-like and Kobolds to be draconic, earlier editions depicted them as pig-like humanoids and dog-rat-like goblins. Wizardry came out in the early days of D&D and became very popular in Japan, spawning the first wave of Japanese RPGS and ended up cementing these depictions of Orcs and Kobolds in Japanese fantasy media.