I have access to every issue of Different Worlds (some of which are available on archive.org,[1]) and have added game reviews to the following articles.
1979 edit
Different Worlds #2: Legacy
Different Worlds #3: Bushido
Different Worlds #5: Arduin, Caliban
Different Worlds #6: Gangster!
1980 edit
Different Worlds #7: Cults of Prax, In the Labyrinth
Different Worlds #8: The Keep on the Borderlands, Heart of Oak: Naval Miniatures for the Age of Fighting Sail, Promotions and Prizes, Advanced Melee, Advanced Wizard
Different Worlds #9: Zargonians, Verbosh, The Complete Wargames Handbook, An Atlas of Fantasy, The Gateway Bestiary
Different Worlds #10: The Temple to Athena
1981 edit
Different Worlds #11: Azhanti High Lightning, Odysseus, The Tombs of Valla, High Fantasy, Fortress Ellendar, Moorguard, Tunnels & Trolls, Legendary Duck Tower, Traveller Adventure 2: Research Station Gamma, Traveller Double Adventure 2: Mission on Mithril/Across the Bright Face, Skull & Crossbones, The Datestones of Ryn, Temple of Apshai, DragonQuest, City of Lei Tabor, A Fortune for Kregen
Different Worlds #12: Zargonians, The Isle of Dread, Plunder, Runemasters, City of Valla, Dungeons & Dragons Basic Set, Dungeons & Dragons Expert Set, The Toughest Dungeon in the World, Thieves' Guild, Thieves' Guild 2, Thieves' Guild 3: The Duke's Dress Ball, Slave Pits of the Undercity, Sewers of Oblivion
Different Worlds #13: Land of the Rising Sun, The Arduin Adventure, The Archer: Fugitive from the Empire, Dragonslayer
Different Worlds #14: City State of the Invincible Overlord, City State of the World Emperor, Tegel Manor, The Caverns of Thracia, Verbosh, Of Skulls and Scrapfaggot Green, The Dragon Crown, Survival of the Fittest, Village Book 1, Village Book 2, Castle Book I, Campaign Hexagon System, Dark Tower, The Book of Treasure Maps, The Book of Treasure Maps II, Temple of Ra Accursed by Set, Sea-Steeds and Wave Riders, Sword of Hope, The Maltese Clue, Citadel of Fire, The Thieves of Fortress Badabaskor, The First Fantasy Campaign, Traveller Double Adventure 3: Death Station/The Argon Gambit, The Black Tower, Grimtooth's Traps, Towns of the Outlands