| Slot Machine |  Old Money | 2011 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Olympic Gold | 1991 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | On Fire | 2006 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | On the Prowl Model 339A | 1997 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | One Touch Bonanza | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | One, Two, Three Fortune | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Oodles of Poodles | 2011 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Oola Moolah | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Opponent Poker | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Oracles of Delphi | 201? | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Orca Classics Platinum | 2016 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Orca Classics | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Oregon Gold | 2005 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Othello | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Outback Cashback | 2014 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Outrageous Ollie's Oystermania | 2005 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Palace of Pennies | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pamplona | 2008 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Panda Palace | 201? | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Panda Party | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Paradise Garden | 2011 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Paradise Garden - Tropical Flower Progressives | 2012 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Animals! Party Time! | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Fantastico! Party Time! | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Girl | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Slots | 2000 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Time! starring Tipsy the Lucky Elephant! | 2006 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Party Town | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Partyville | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Paul Rodriguez - One Night Only | 200? | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Payroll | 2006 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Paytime | 2000 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Peanut Butter and Pennies | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pearl Bay | 201? | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pearl-A-Whirl | 2001 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pelican Pays | 2003 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pelican Pays | 2007 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Penguin Party | 2005 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pennies from Above | 2004 | IGT International Game Technologies Reno, NV, USA |
| Slot Machine | Pennies on the Dollar | 2005 | IGT International Game Technologies Reno, NV, USA |
