| Slot Machine |  AB - American Bandstand | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Above and Below | 2001 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Abracadabra | 2007 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Abre La Caja | 200? | Inversiones Comatel, S.L. |
| Slot Machine | Ace GOSTOP | 2002 | Unknown Korea |
| Slot Machine | Ace II GOSTOP | 200? | Unknown Korea |
| Slot Machine | Ace in the Hole | 1999 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Ace Invaders - Bonus Poker | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Ace Mania | 200? | Ortiz Gaming, S.L. |
| Slot Machine | Ace of Clubs | 1963 | Ainsworth Consolidated Industries Pty., Ltd. Sydney, Australia |
| Slot Machine | Ace Poker 2001 | 2001 | Unknown Korea |
| Slot Machine | Ace Race | 19?? | Crompton Amusement Machines, Ltd. Alfred Crompton |
| Slot Machine | Ace-Hi | 1959 | Vic Walker Mfg. Co. Australia |
| Slot Machine | Aces & Deuce Bonus Poker | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Aces High | 199? | Aristocrat Leisure Industries Pty, Ltd. |
| Slot Machine | Aces High | 2002 | Aruze Corp. Japan |
| Slot Machine | Achievement Hunt | 2010 | WMS Gaming, Inc. Chicago, IL, USA |
| Slot Machine | Achille's Wheel | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Acme | 1893 | Maley Novelty Co., Charles T. Cincinnati, OH, USA |
| Slot Machine | Acme Roulette | 1960 | Acme Novelty Co. Las Vegas, NV, USA |
| Slot Machine | Acorn's Fortune | 2011 | Bally Tech., Inc. |
| Slot Machine | Action 4u | 2004 | Bally Wulff |
| Slot Machine | Action Cash | 2011 | Ainsworth Game Technology, Ltd. |
| Slot Machine | Action Cash Rewards Play 50/100 Lines Rewards Game Plus | 2011 | Ainsworth Game Technology, Ltd. |
| Slot Machine | Action Hunter | 2005 | Stargames, Ltd. Australia |
| Slot Machine | Action Line | 1974 | Bell-Fruit Mfg. Co., Ltd. B.F.M. UK |
| Slot Machine | Action Money | 200? | EGT Euro Games Technology, Ltd. Bulgaria |
| Slot Machine | Action Money II | 200? | EGT Euro Games Technology, Ltd. Bulgaria |
| Slot Machine | Action Money Classic Blend Series | 2003 | EGT Euro Games Technology, Ltd. Bulgaria |
| Slot Machine | Action Pack | 200? | Astra Games, Ltd. Novomatic Group Bridgend, Mid Glamorgan UK |
| Slot Machine | Action Packed | 1986 | Ainsworth Consolidated Industries Pty., Ltd. Sydney, Australia |
| Slot Machine | Action Packed Lights Camera Action Game Plus | 2011 | Ainsworth Game Technology, Ltd. |
| Slot Machine | Action Reels Play 50/100 Lines Game Plus | 201? | Ainsworth Game Technology, Ltd. |
| Slot Machine | Action Stacked 7s | 2009 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Action Stacked Diamonds | 2009 | Konami Gaming, Inc. Las Vegas, NV, USA |
| Slot Machine | Action Star | 200? | Unidesa Universal de Desarrollos Electronicos |
| Slot Machine | Action Star 400 6001 | 200? | Unidesa Universal de Desarrollos Electronicos |
| Slot Machine | Action Star 6001 | 200? | Unidesa Universal de Desarrollos Electronicos |
| Slot Machine | Action Star BAR 6500 | 200? | Unidesa Universal de Desarrollos Electronicos |
| Slot Machine | Action Star BAR 6600 | 200? | Unidesa Universal de Desarrollos Electronicos |
