I found this on a catalog on the web. I'll post it here in case the website disappears. It's not complete. Feel free to add to it if you have more information. As noted by dathon, Issue 2 has a D&D adventure called Serpent Keep by Clyde Heaton (author of several Dragon magazine articles). If anyone has any of these, I'm interested in finding out which article is by John Eric Holmes.
from
http://homepage.ntlworld.com/andy.merri ... tJun04.htm
Gameplay Magazine, published by Crystal Publications.
Edited by Jake Jaquet. Country: American, Desc. by Andy.
Games magazine which includes articles on all types and aspects of gaming. As well as regular articles such as the editorial, letter and news major articles are listed below.
Vol. 1 No. 1, 1983. Tonobeb - Dice & Board Game for you to play; Hot Games mini reviews of products from Grenadier Models, FGU, Sirius Software and TSR; Sales Charts; Computer Game Design; Video Game Cartridges; Greed in Backgammon; Etymological Frauds; Monopoly variants including additional cutout title deeds and event cards; Defining Adventure Gaming; Selkies & Swanfolk in AD&D; Different Campaign Styles; Ethics In Gaming (by Jeff Swycaffer); Making a Fantasy RGP Campaign Last; Better Roleplaying; 1982 Gaming Year; Book & Game Reviews.
Vol. 1 No. 2, 1983. New products from Victory Games, Blade, Datamost, Cyber Enterprises, Avalon Hill, Mayfair, Eon; Sales Charts; Arcade Games; Backgammon strategy; Interview with Darwin Bromley - Game Collector; Diplomacy variants; Hobby Industry America Show Report; Serpent Keep by Clyde Heaton - 14 page AD&D adventure featuring a water naga; AD&D probability; Response to Critics of RPGs; Playing Styles; Game Reviews (Soldier King, Cosmic Encounter).
Vol. 1 No. 3, 1983. Sales Charts; New Product info from TSR, Animal Town, TOME Inc, Fantasy Press, Quarterdeck Games, Rohrwood Enterprises, Gregory Enterprises; Game Programming; Backgammon Strategy; Chess Strategy; Video Arcade Games; Privateer - Traveller Adventure (14 pages); Interview with Al Leonardi (Aces of Aces, Lost Worlds); Should a GM Cheat ?; The Organised GM; Game Development; Making NPC Mames Unique; Reviews (Illuminati, Beserker); Book Reviews.
Vol. 1 No. 4, 1983. Quadrant - Deep Space Game for you to play - includes counters + board; Sales Charts; New product info from Steve Jackson Games, Grenadier, Micro Fun, Mayfair, Attactix, TSR; Backgammon Strategy; Chess Strategy; Computer Games; Gaming For One; Football Strategy; Modern Royalty (playing card game for 6 - full rules included); Reviews (Hell's Highway, Elric, Empire Builder, Borderlands); Decisions by Dice; Game Related Books Reviewed (18 of them!); Mini Reviews (x7).
Vol. 1 No. 5, 1983. New products from RMP, Ritam, Coleco, Mattel, Hayden, Close Simulations, Parker Bros, Blade, Task Force, Activision, Games Workshop; Sales Charts; Backgammon Strategy; Chessboard Magicians; Video games; Consumer Electronics Show Report (long); Video Arcade Management; Personal Staves for Mages; Trivial Pursuit Review + Interview with Designers; Strategic Diplomacy; High Level Roleplaying; Avalon Hill 500 Tournament; Reviews (Jasmine: The Battle for Mid Realm, NFL Franchise, Pente).
Vol. 1 No. 6, 1983. Solitaire 34 (Mathematical Solitaire Card Game for you to play); New Products from Hayden, Close Simulations, Nielson Plastics, Steve Jackson Games, Grenadier, FASA, Sirius; Sales Charts; Backgammon Strategy; Chess Strategy; Computer Games; Bridge Strategy; Grenadier Miniatures Special; Establishing a Games Club; Pente Problems; Role Play Etiquette; Games Reviews (Stalingrad, The Boss, City States of Arklyrell); Zones of Control.
Vol. 1 No. 8, 1983. New Products from Dell Publishing, Adventure Games, Palladium Books, Chaosium, Alliance Publications, I.C.E., Aulic Council, TSR, Gamelords; Sales Charts; Computer Games; Chess Strategy; Pente Strategy; Solitaire Wargaming; Pigmania variants; GenCon Report; North American Scrabble Championships; Reivew of MERP Modules; Reviews (Star Explorer, Bomb Alley, Harn, Sea Chess, Danger Island, Smuggler); Mapping Indoor Adventures; Simulations Corner.
Vol. 1 No. 10, 1983. New Products from Prentice Hall, Grenadier, Victory, Mayfair, Close Simulations; Sales Chart; Modern Chess Variants; Designing the Terra II Combat System; Bridge Strategy; Christmas Shoppers; Pente Strategy; Backgammon Strategy; True Image Games; Reviews (Sherlock Holmes Consulting Detective); PBM Games; Live Action Gaming; Finding and Keeping a New GM; Interview with Frank Chadwick; Review of 4 Russian Front Wargames.
Vol. 1 No. 11, Jan 1984. Includes a Tom Wham game, "Gangsters"; the title page of the game is a full page Trampier drawing.
Vol.1 No. 12, Feb 1984. The boardgamegeek page linked below states that this issue has more rules for Gangsters that are missing from issue 12.
Vol. 1 No. 13, 1984. New Products from Hero Games, Electronic Arts, I.C.E., Prentice Hall, Selchow & Richter, GDW, Activision, Datamost; Chess Strategy; Bridge Strategy; Pente Variation; PBM Report; Who Killed The Robins Family; Games of Intrigue Special (Clue, Suspicion, Whodunnit, 221B Baker St, Top Secret, Espionage, Mercenaries Spies & Private Eyes, Gangbusters, James Bond, Sherlock Holmes Consulting Detective); Reviews (Ipswich, James Bond 007, Campaign Trail, NATO); AD&D Stat Generation.