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22600 KENNETH BULMER The Star Venturers (cover by John Schoenherr) and DEAN R. KOONTZ Fall of the Dream Machine (cover by Jack Gaughan; January 1969)
72400 A. BERTRAM CHANDLER The Rim Gods (cover by John Schoenherr) and 72400b LAURENCE M. JANIFER and S. J. TREIBICH The High Hex (cover by Kelly Freas; February 1969)
30300 FRITZ LEIBER The Green Millennium (cover by John Schoenherr) and 30300b FRITZ LEIBER Night Monsters (cover by Jack Gaughan; March 1969)
37250 JOHN M. RACKHAM (aka JOHN T. PHILLIFENT) Ipomoea (cover by Kelly Freas) and 37250b MARION ZIMMER BRADLEY The Brass Dragon (cover by Jack Gaughan; April 1969)
23140 DEAN R. KOONTZ Fear That Man (cover by Jack Gaughan) and 23140b E. C. TUBB Toyman (cover by Kelly Freas; May 1969)
77710 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) The Space Barbarians (cover by Kelly Freas) and 77710b ROBERT LORY The Eyes of Bolsk (cover and frontspiece illustration by Jack Gaughan; June 1969)
81680 JOHN JAKES Tonight We Steal the Stars (cover by Kelly Freas and interior illustration by Jack Gaughan) and 81680b LAURENCE M. JANIFER and S. J. TREIBICH The Wagered World (cover and interior illustration by Jack Gaughan; July 1969)
12140 BRIAN M. STABLEFORD Cradle of the Sea (cover by Jack Gaughan) and 12140b KENNETH BULMER The Wizards of Senchuria (cover by Kelly Freas; August 1969)
42800 E. C. TUBB Kalin (cover by John Schoenherr) and 42800b ALEX DAIN The Bane of Kanthos (cover by Gray Morrow; September 1969)
23775 K. M. O'DONNELL Final War and Other Fantasies (cover by Panos Koutroubousis) and 23775b JOHN RACKHAM (aka JOHN T. PHILLIFENT) Treasure of Tau Ceti (cover by Kelly Freas and frontspiece by Gray Morrow; October 1969)
42900 GEORGE H. SMITH Kar Kaballa (cover by John Schoenherr) and 42900b LIN CARTER Tower of the Medusa (cover by Jeff Jones; November 1969)
66160 WALT and LEIGH RICHMOND Phoenix Ship (cover by Jack Gaughan) and 66160b NICK KAMIN (aka ROBERT J. ANTONICK) Earthrim (cover by Panos Koutroubousis; December 1969)
89250 MARION ZIMMER BRADLEY The Winds of Darkover (cover by Kelly Freas) and 89250b JOHN RACKHAM (aka JOHN T. PHILLIFENT) The Anything Tree (cover by John Schoenherr; January 1970)
06707 BRIAN M. STABLEFORD The Blind Worm (cover and frontspiece illustration by Jack Gaughan) and and 06707b EMIL PETAJA Seed of the Dreamers (cover by Gray Morrow; February 1970)
81610 DAVID GRINNELL (aka DONALD A. WOLLHEIM) To Venus! To Venus! (cover by John Schoenherr) and 81610b E. C. TUBB The Jester at Scar (cover by Kelly Freas; March 1970)
27235 WALT and LEIGH RICHMOND Gallaghers Glacier (cover by Kelly Freas) and 27235b WALT and LEIGH RICHMOND Positive Charge (photo cover; April 1970)
24100 JOHN RACKHAM (aka JOHN T. PHILLIFENT) Flower of Doradi (cover by Kelly Freas) and 24100b JEREMY STRIKE (aka THOMAS EDWARD RENN) A Promising Planet (cover by Jack Gaughan; May 1970)
76096 KENNETH BULMER The Ships of Durostorm (cover by Jack Gaughan) and 76096b JEFF SUTTON (aka JEFFERSON SUTTON) Altons Unguessable (cover by Kelly Freas; June 1970)
52180 ROBERT LORY Masters of the Lamp (cover and frontspiece illustration by Jack Gaughan) and 52180b ROBERT LORY A Harvest of Hoodwinks (cover by Gray Morrow; July 1970)
78400 BARRINGTON J. BAYLEY The Star Virus (cover by Kelly Freas) and 78400b JOHN JAKES Mask of Chaos (cover by Jack Gaughan; August 1970)
51375 PHILIP JOSE FARMER The Mad Goblin (cover by Gray Morrow) and 51375b PHILIP JOSE FARMER Lord of the Trees (cover by Gray Morrow; September 1970)
11560 SUZETTE HADEN ELGIN The Communipaths (cover by Josh Kirby) and 11560b LOUIS TRIMBLE The Noblest Experiment In the Galaxy (cover and frontispiece by Jack Gaughan; October 1970)
13793 DEAN R. KOONTZ Dark of the Woods (cover by Jeff Jones) and 13793b DEAN R. KOONTZ Soft Come the Dragons (cover by Jack Gaughan; November 1970)
27400 NEAL BARRETT, JR. The Gates of Time (cover by Josh Kirby) and K. M. O'DONNELL Dwellers of the Deep (cover by Jack Gaughan; December 1970)
58880 SAM J. LUNDWALL No Time For Heroes (cover by Josh Kirby) and 58880b SAM J. LUNDWALL Alice's World (cover by Josh Kirby; January 1971)
05595 JOHN RACKHAM (aka JOHN T. PHILLIFENT) Beyond Capella (cover by Kelly Freas; note this copy has been signed by Freas) and 05595b KENNETH BULMER Electric Sword Swallowers (cover and frontispiece illustration by Jack Gaughan; February 1971)
11182 RON GOULART Clockwork Pirates (cover by Karel Thole) and 11182b RON GOULART Ghost Breaker (cover by Karel Thole; March 1971)
71082 CLAUDIA and RHODA NUNES Recoil (cover by Kelly Freas) and 71082b E. C. TUBB Lallia (cover and interior illustration by Ken Barr; April 1971)
13783 A. BERTRAM CHANDLER The Dark Dimensions (cover by Kelly Freas) and A. BERTRAM CHANDLER Alternate Orbits (cover by Karel Thole; May 1971)
13805 JOHN RACKHAM (aka JOHN T. PHILLIFENT) Dark Planet (cover by Jack Gaughan) and 13805b NICK KAMIN (aka ROBERT J. ANTONICK) The Herod Men (cover by John Schoenherr, frontispiece by Jack Gaughan; June 1971)
77785 ERIC FRANK RUSSELL The Space Willies (cover by Kelly Freas) and 77785b ERIC FRANK RUSSELL Six Worlds Yonder (cover by Kelly Freas; July 1971)
68310 JOHN GLASBY Project Jove (cover by Kelly Freas) and 68310b KENNETH BULMER The Hunters of Jundagai (cover by Kelly Freas; August 1971)
27415 K. M. O'DONNELL Gather in the Hall of Planets (cover art by Jack Gaughan) and K. M. O'DONNELL In the Pocket and Other S-F Stories (September 1971; 1st printing; .cover art by Karel Thole)
66525 MURRAY LEINSTER (aka WILL F. JENKINS) Pirates of Zan and MURRAY LEINSTER The Mutant Weapon (cover by Dean Ellis; October 1971)
75781 LEIGH BRACKETT The Secret of Sinharat (cover by Enrich) and LEIGH BRACKETT People of the Talisman (cover by Enrich; November 1971)
77525 JACK VANCE (aka JOHN HOLBROOK VANCE) Son of the Tree (cover by Josh Kirby) and 77525b JACK VANCE (aka JOHN HOLBROOK VANCE) The Houses of Iszm (cover by Dean Ellis; December 1971)
33710 NEIL BARRETT, JR. Highwood (cover by Enrich) and 33710b BARRINGTON J. BAYLEY Annihilation Factor (cover by Lloyd; January 1972) spine edge
15890 MARION ZIMMER BRADLEY The Door Through Space and 15890b A. BERTRAM CHANDLER Rendezvous on A Lost World (February 1972)
79975 E. C. TUBB Technos (cover by Bergman) and 79975b E. C. TUBB A Scatter of Stardust ((cover by Karel Thole; March 1972)
16640 JACK VANCE (aka JOHN HOLBROOK VANCE) The Dragon Masters (cover by Josh Kirby) and 16640b JACK VANCE (aka JOHN HOLBROOK VANCE) The Five Gold Bands (cover by Lloyd; April 1972)
00990 SUSAN K. PUTNEY Against Arcturus and 00990b DEAN R. KOONTZ Time Thieves (May 1972)
37062 A. BERTRAM CHANDLER The Inheritors and 37062b A. BERTRAM CHANDLER The Gateway to Never (June 1972)
10293 JOHN RACKHAM Earthstrings and 10293b KENNETH BULMER The Chariots of Ra (cover by Kelly Freas; July 1972)
06612 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Blackman's Burden and 06612b MACK REYNOLDS Border, Breed Nor Birth (August 1972)
15697 PHILIP K. DICK Dr. Futurity (cover by Harry Bergman) and 15697b PHILIP K. DICK The Unteleported Man (cover by Harry Bergman; September 1972)
31755 A. BERTRAM CHANDLER The Hard Way Up (cover by Kelly Freas) and 31755b ROBERT LORY The Veiled World (October 1972)
11451 A. BERTRAM CHANDLER Coils of Time (cover by Rucker) and A. BERTRAM CHANDLER Into The Alternate Universe (cover by Ellis; November 1972)
For this volume, ACE reprinted ACE Double M-107 (1964).
22576 MARION ZIMMER BRADLEY Falcons of Narabedla and MARION ZIMMER BRADLEY The Dark Intruder & Other Stories (cover by Kelly Freas; December 1972)
For this volume, ACE reprinted ACE Double F-273 (1964).
76960 LESTER Del REY The Sky is Falling and 76960b LESTER Del REY Badge of Infamy (January 1973)
11650 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Computer War and MACK REYNOLDS Code Duello (February 1973)
93900 EDMOND HAMILTON A Yank at Valhalla and 93900b ROSS ROCKLYNNE The Sun Destroyers (March 1973)
16641 JACK VANCE (aka JOHN HOLBROOK VANCE) The Dragon Masters (same cover as the 1972 printing) and 16641b JACK VANCE The Last Castle (April 1973)
53415 DORIS PISERCHIA Mister Justice (cover by Kelly Freas; 1st ACE printing) and 53415b JOHN T. PHILLIFENT Hierarchies (cover by Kelly Freas; May 1973; 1st ACE printing)
76380 WILLIAM F. TEMPLE The Three Suns of Amara (cover by Kelly Freas) and 76380b WILLIAM F. TEMPLE Battle on Venus (cover by Mary Bryman?; 2nd ACE printing June 1973)
89301 E. C. TUBB The Winds of Gath and E. C. TUBB Derai (c. 1968; cover by Jeff Jones; July 1973)
48245 JOHN T. PHILLIFENT Life With Lancelot (cover by Valigursky; 1st thus) and WILLIAM BARTON Hunting on Kunderer (cover by Bergman; 1st ACE printing August 1973)
66995 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) The Rival Rigelians and MACK REYNOLDS Planetary Agent X (June 1974)
14250 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) Depression Or Bust (c. 1974; and MACK REYNOLDS Dawnman Planet (c. 1966; October 1974)
20571 SAMUEL R. DELANY The Ballad of Beta-2 and SAMUEL R. DELANY Empire Star (cover by Meltzer; October 1975)
20571 (back cover)
24035 MACK REYNOLDS (aka DALLAS McCORD REYNOLDS) The Five Way Secret Agent and MACK REYNOLDS Mercenary from Tomorrow (November 1975)
66093 CLARK DARLTON (aka WALTER ERNSTING) The Stolen Spacefleet (PR109) and KURT MAHR Sgt. Robot (PR110)
66094-0 WILLIAM VOLTZ Seeds of Ruin (PR111) and K. H. SCHEER Planet Mechanica (PR112)
66095-9 CLARK DARLTON (aka WALTER ERNSTING) Heritage of the Lizard People (PR113) and KURT MAHR Death's Demand (PR114)
66096-7 KURT BRAND Saboteurs in A-1 (PR115) and WILLIAM VOLTZ The Psycho Duel (PR116)
66097-5 K. H. SCHEER Savior of the Empire (PR117) and CLARK DARLTON (aka WALTER ERNSTING) The Shadows Attack (PR118)
66098-3 W. W. SHOLS The Wasp Men Attack (PR-none given) and ERNEST VLCEK Atlan #1: Spider Desert (listed as a "Special Release" volume)
66099-1 KURT MAHR Menace of Atomigeddon (PR-none given) and CLARK DARLTON (aka WALTER ERNSTING) Atland #2: Flight from Tarkihl (listed as a Special Release volume)
66121-1 W. W. SHOLS Robot Threat: New York (PR-none given) and HANS KNEIFEL Atlan #3: Pale Country Pursuit (listed as a Special Release volume)
66128-9 K. H. SCHEER Atlan #4: The Crystal Prince (PR-none given) and CLARK DARLTON (aka WALTER ERNSTING) Atlan #5: War of the Ghosts (cover by Wilson)
73100-7 A. BERTRAM CHANDLER The Road to the Rim (c. 1962) and The Hard Way Up (c. 1972; April 1978)
37063-2 A. BERTRAM CHANDLER The Inheritors and The Gateway to Never (cover by Paul Alexander; June 1978)
72401-9 A. BERTRAM CHANDLER The Dark Dimension and The Rim Gods (cover by Rowena Morrill)
37108-6 A. BERTRAM CHANDLER Into the Alternate Universe and Contraband From Otherspace (cover by Rowena Morrill)
73390-5 AVRAM DAVIDSON The Kar-Chee Reign and Rogue Dragon (cover by Olivia; c. 1965, 1966, March 1979)
24890-X H. BEAM PIPER Four-Day Planet and Lone Star Planet (cover by Michael Whelan)
11555-1 A. BERTRAM CHANDLER The Commodore at Sea and Spartan Planet (c. 1971; cover by Paul Alexander; 1st ACE printing June 1979)
11705-8 ROBERT SILVERBERG Conquerors From the Darkness and Master of Life and Death
72402-7 A. BERTRAM CHANDLER The Rim of Space and The Ship From Outside (cover by Attilla Heja; November 1979)
72402-7 (back cover)
78537-9 ROBERT SHECKLEY The Status Civilization and Notions: Unlimited (c. 1960, November 1979)
73101-5 A. BERTRAM CHANDLER The Road to the Rim and The Hard Way Up (cover by Ken Barr; same as ACE 73100)
67021-0 MARION ZIMMER BRADLEY The Planet Savers and The Sword of Aldones (cover by Michael Whelan; same cover for ACE 67020 - a single with only "The Planet Savers")
37130-2 ROBERT SILVERBERG Invaders From Earth and To Worlds Beyond
49252-5 PHILIP JOSE FARMER Lord of the Trees and The Mad Goblin (May 1970)
01685-5 GORDON R. DICKSON Alien Art and Arcturus Landing
81237-6 GORDON R. DICKSON Time to Teleport and Delusion World (cover by Steve Hickman)
65874-1 ROBERT SHECKLEY The People Trap and Mindswap
73102-3 A. BERTRAM CHANDLER The Road to the Rim and The Hard Way Up (cover by Ken Barr; same as ACE 73100)
37064-0 A. BERTRAM CHANDLER The Inheritors and The Gateway to Never (cover by Paul Alexander; same as ACE 37063)
72403-5 A. BERTRAM CHANDLER The Dark Dimension and The Rim Gods (copyright 1971, Ace printing August 1978; cover art by Rowena Morrill)
37109-4 A. BERTRAM CHANDLER Into the Alternate Universe and Contraband From Otherspace (cover by Rowena Morrill; same as ACE 37108-6)
11556-X A. BERTRAM CHANDLER The Commodore at Sea and Spartan Planet (same cover as ACE 11555-1)
72402-3 A. BERTRAM CHANDLER The Rim of Space and The Ship From Outside (cover by Attilla Heja; same as ACE 72402-7)
86495-3 L. SPRAGUE deCAMP The Virgin of Zesh and The Tower of Zanid
37365-8 ROBERT E. HOWARD The Iron Man and The Adventures of Dennis Dorgan
24892-6 H. BEAM PIPER Four-Day Planet and H. BEAM PIPER and JOHN J. McGUIRE Lone Star Planet
67025-3 MARION ZIMMER BRADLEY The Planet Savers and The Sword of Aldones (cover by Jmaes Warhola to illustrate The Sword of Aldones)
67026-1 MARION ZIMMER BRADLEY The Planet Savers and The Sword of Aldones (cover by James Warhola to illustrate The Sword of Aldones)
67027-X MARION ZIMMER BRADLEY The Planet Savers and The Sword of Aldones (c. 1962; 1988; cover by James Warhola ; same as ACE 67026-1)
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