1982 - Dungeons & Dragons Ad

1984 - Thor by Steven Butler

1985 - Marvel Super Heroes RPG The Last Resort

Interior art by Kyle Baker

1984 - Marvel Super Heroes RPG's The Breeder Bombs

Artwork by Sal Buscema and John Byrne

1985 - Marvel Super Heroes Unpainted Miniatures Set #3

Marvel Superheroes Set #3
Scarlet Witch, Hawkeye, Spider-Man, She Hulk, Ultron, and Kingpin

And a few more images from Sanctum Sanctorum Comix
http://sanctumsanctorumcomix.blogspot.ca/2009/03/idol-pursuits-master-of-plastic-arts_9976.html

Sets #4 and #5 were never produced.
Marvel Superheroes Set #4
Angel, Cyclops, Invisible Woman, Mystique, Vision, Daredevil, Juggernaut, Vulture, Beast, Hobgoblin, Mandarin, and Iron Man.

Marvel Superheroes Set #5
Aurora, Guardian, Punisher, Snowbird, Cloak, Howard the Duck, Red Skull, Taskmaster, Dagger, Puck, Shaman, and Talisman.

http://www.cs.cmu.edu/~tpope/sol/tsr/marvel-super-heroes.html

1984 - Marvel Super Heroes Unpainted Miniatures Set #1 & #2

Marvel Superheroes Set #1
Captain America, Dr. Octopus, Hulk, Thor, Mr. Fantastic, Captain Marvel, Human Torch, The Scorpion, Spider Man, Thing, Radioactive Man, and Dr. Doom.

Marvel Superheroes Set #2
Sub Mariner, Iron Man, Rogue, Colossus, Nightcrawler, The Leader, Kang, Magneto, Ariel, Doctor Strange, Wolverine, and Storm.

1986 - Marvel Super Heroes Adventure Gamebooks

This series of books, similar to the Advanced Dungeons & Dragons Adventure Gamebooks, was a single-player RPG adventure and used a lighter version of the Marvel Super-Heroes Role Playing Game (also published by TSR).

There were 8 books in the series which was released between 1986 and 1988.

And here's a full-page ad for the series from Dragon #125.

References:

- Demian's Gamebook Web Page