Referential humor is quite widespread in the forum adventures. It is no surprise that many of them often make reference or pay homage to a wide assortment of video games, considering that they are all based off of old-school text adventures.
Day of the Tentacle.
You Have To Burn The Rope.
Recreates You Have To Burn The Rope in MSPA format.
Samuel has two books containing Sirrus and Achenar from Myst on his bookshelf, but never opens them.
Set in the universe of the Touhou Project games.
There are only a few, like one time he holds up an item like in the Legend of Zelda games.
Parodies the Legend of Zelda games a few times.
Parodies the Legend of Zelda, Final Fantasy, Yoshi's Island and God of War.
"Dungeons and Dragons" is a fond past time of the main characters. The "Exploit Ivory" and "Character Sheets" in their world are also reminiscent of tabletop gaming. Furthermore, "SQUEST" is also a loose parody of Dungeons and Dragons itself, as well as many fantasy based MMORPGs.
A parody of Left4Dead.
Set in the Pokémon world.
The elemental symbols from Pokémon appear on a keyboard.
A parody of the series of Mario games.
The entire collaboration is modeled after the Ace Attorney series of games.
Gradius, The Legend of Zelda: The Wind Waker, The Legend of Zelda: Ocarina of Time, Portal, Monkey Island.
Near-constant references. Zork, Super Mario Bros., Myst, Castlevania: Symphony of the Night, Legacy of Kain: Soul Reaver, Pokémon, Portal, Monster Rancher and EarthBound, just to name a few.
James punches Captain Olimar of Pikmin.
It's name is a clear pun on the game Pikmin. It also has you playing as a minuscule creature in a humongous world.
A parody of the series of Pokémon games.
Uses a Sims-style format.
Revolves around a game of UnReal World RPG.
The name is a reference to Shadowhearts along with a few others. The battle system is based off of the common turn-based system found in many RPGs.
Originally inspired by Shadow of the Colossus.
Presumably a Megaman X reference.
Not only is the adventure's structure similar to The Mystery of Time and Space, but that game is specifically referenced at one point and one puzzle directly stolen from it. Later, an adaption of You Have to Burn the Rope is presented as a bonus chapter, and a battle system reminiscent of many tactical/strategy RPGs is introduced.