| ARDA | Variant | Designer | Players |
| ar09 | Eagles | Ed Greenwood | |
| fe01 | Earthsea Diplomacy | Thomas Galloway | 5 |
| es03 | East Indies Diplomacy II | Bruce Sawyer and Fred Davis | 7 |
| es04 | East Indies III | Bruce Sawyer and Fred Davis | 7 |
| es05 | East Indies IV | Fred Davis | 6 |
| vb14 | Easter Island Diplomacy | Simon Cole | 3 |
| hn01 | Eckert’s Napoleonic Diplomacy | Bob Eckert | |
| sg09 | Ecliptic | Paul Willer | 5 |
| ge08 | Ecodip | Francois Budai (Rules in French) | 10 |
| yo01 | Econocator | Doug Wakefield | |
| re01 | Economic Diplomacy I | Jerry Pournelle | 7 |
| re02 | Economic Diplomacy II | Jerry Pournelle and Don Miller | 7 |
| re04 | Economic Diplomacy III | R. Shagrin | 7 |
| re03 | Economic Diplomacy IV | Fred Davis | 7 |
| re21 | Economic Enhancement Diplomacy | Unknown | 7 |
| re13 | Econopolicy | Mike Dominskyj | 7 |
| cm06 | Egypt Diplomacy | Geoff Tonks | 7 |
| rt07 | Elective Diplomacy I | Steve Doubleday | |
| rn27 | Elitist | Bryan Betts | 7 |
| ys07 | Emhamia Bourse | Mike Mills | |
| uu05 | Empire I | W. Johnson | 10 |
| uu10 | Empire II | Johnson and St. Andre (requires uu05) | 9 |
| na06 | Empire IV | Vincent Mous | 10 |
| pe11 | English Civil War (I) | Stephen Agar | 2 |
| pe18 | English Civil War IIa | Stephen Agar and Michael Heaton | 2 |
| pe09 | English Civil Wars II | Stephen Agar | 2 |
| rm43 | Envoy | Pete Calcraft and Andy Poole | |
| rx11 | Envoy II | Peter Calcraft and Andy Poole | 2 |
| rs23 | Erratic Diplomacy | Martin Janta-Polczynski | 7 |
| rc03 | Erratic Diplomacy II | Rod Chamberlin | 7 |
| rb09 | Escalated Diplomacy | D. Alderson (CE 1) | 7 |
| rz05 | Escalation Diplomacy | Greg Costikyan | |
| rf15 | Escalation Diplomacy II | Edi Birsan | |
| ph01 | Espana Vieja | Ken Halpern and Brian Lorber | 6 |
| rn33 | Espionage Diplomacy IV | Pete Tulk and Kevin Matthews | 7 |
| rv02 | Espionage I | Richard Sharp | 7 |
| rn18 | Espionage II | Ian Shearer | 7 |
| rn22 | Espionage III | Richard Sharp | 7 |
| ea03 | Eurasian Diplomacy | Randy Davis | 7 |
| hb05 | Europe 1650 | C. Alexander | 7 |
| hc02 | Europe 1721 | John Boyer | 7 |
| qp04 | Europe 2010 | ?? | 9 |
| ce05 | European Diplomacy | Michael Zmolek | 8 |
| rb68 | Eurotunnel Diplomacy | Andrew Poole | 7 |
| vj08 | Everybody Plays | Julie Martin and Dick Martin | |
| rb107 | Evil Empire | Graham Staplehurst | 7 |
| pe02 | Excalibur | Kenneth Clark | 7 |
| ys11 | Exchange Diplomacy | Bruce Duewer | |
| mc01 | Excommunication II | Greg Costikyan | 13 |
| za02 | Executive (English) | Dylan Harris | 8 |
| ug13 | Existential Diplomacy | Marc Hurwitz | 3 |
| xo05 | Extended Diplomacy (ex “xm13”) | Peter Scribner | 7 |
| rb92 | Extra Supply Centers | Jef Bryant | 7 |
| rb29 | Extremely Anonymous Diplomacy | J. Maiden | 7 |
| vj13 | Extremely Silly Variant | Paul McGivern | 7 |
| rm88 | Factional Diplomacy | Martin Kennedy | 7 |
| rb82 | Fagin’s Diplomacy | Steve Doubleday | 7 |
| ar08 | Fall of Rome | Christopher Hunt | 7 |
| ee01 | Far East I | Vern Schaller | 5 |
| ee02 | Far East I-R | Vern Schaller and Fred Davis | 5 |
| od04 | Federation | Theo Kermanidis | 8 |
| rb46 | Fellow Traveller | Steve Doubleday | 7 |
| mi03 | Feudal Diplomacy I | L. Pulsipher (includes Feudal Diplomacy IV (fn06)) | 2-9 |
| fn06 | Feudal Diplomacy IV | Lew Pulsipher (included with mi03) | |
| cb38 | Feudal II | Dave Russell | 7 |
| mb01 | Feudalism(“II”) (Imperialism X) | Rod Walker | 11 |
| rf13 | Fiascomacy | Martin Edwardes | 3+ |
| ud02 | Fiat Lux | Greg Costikyan | |
| gp38 | Fin de Siecle | Paul Barker | 16 |
| gf12 | Final Conflict (I) | Tom Swider | 7 |
| gf16 | Final Conflict II | Tom Swider and Don Williams | 7 |
| gf20 | Final Conflict III | Tom Swider | 7 |
| ys01 | Financial Diplomacy | Gavin Addison | |
| rb10 | Fink Variant Rule | Howdard Mahler | 7 |
| hn16 | First Consul’s Gambit | S.W. Nesbitt II | 7 |
| ac14 | First Mithridatic War | Mark Nelson | 5 |
| cb41 | First Strike Nuclear Diplomacy | Paul Dunning | 7 |
| ec03 | Five Dynasties Diplomacy | Steve Doubleday | 9 |
| ug12 | Five Italies (Kathy Byrne Variant) | Mike Lee | 5 |
| hx01 | Five Nations Diplomacy | Peter Northcott | 5 |
| rb105 | Flaggshipp | Jason Wilke | 7 |
| rb41 | Fleet Rome | Richard Sharp | 7 |
| rs20 | Flexible Build Diplomacy | Allen Wells | 7 |
| ne02 | Flintlock II | John Leeder | 6 |
| ru09 | Flood | Kenneth Samuel | 7 |
| rs08 | Fluid Diplomacy I | Peter Aronson | 7 |
| rm31 | Fluid Diplomacy II | Robert Sacks | 7 |
| rm04 | Foe-Nazu | Randolph Bart | 7 |
| rd22 | Fog of War | Phil Reynolds | 7 |
| rx10 | Foreknowledge Diplomacy | Stephen Agar | 2 |
| ys08 | Forex | Iam Whitchurch | |
| rm91 | Formal Diplomacy | E. Sabatine | 7 |
| sa01 | Foundation Game I | Fritz Mulhouser | |
| rr04 | Fourth Dimension | Peter Swanson and Graham Jeffrey | 7 |
| cb27 | Frauke’s Beer River Diplomacy | Scott Hanson | 7 |
| pf01 | French Diplomacy | Russell Fox | 8 |
| rb69 | Friendship Diplomacy | Glenn Overby | 7 |
| na04 | From Sea to Shining Sea | Ron Zalewski and Glenn Overby | 5 |
| fm02 | Furthark Diplomacy | Glenn Overby | 7 |
| gf07 | Futur War | B. Sherrad | 9 |
| rb54 | Future Tense Diplomacy | Richard Young | 7 |