| BASIC soft. type-in |  Mathdice | 1973 | DEC Digital Equipment Corp. |
| BASIC soft. type-in | Matilda's Monopoly for Two | 1973 | DEC Digital Equipment Corp. |
| PLATO soft. | Mazewar | 1973 | Bloomfield, Louis A. |
| Arcade Video game | Missile Radar | 1973 | Nutting Associates, Inc. NA Mountain View, CA, USA |
| Pinball | Mississippi | 1973 | R. Franco Recreativos Franco Madrid, Spain |
| Pool Table | Model 13 | 1973 | Valley Recreation Products, Inc. Bay City, MI, USA |
| Pool Table | Model 23 | 1973 | Valley Recreation Products, Inc. Bay City, MI, USA |
| Pool Table | Model 33 | 1973 | Valley Recreation Products, Inc. Bay City, MI, USA |
| Pool Table | Model 43 | 1973 | Valley Recreation Products, Inc. Bay City, MI, USA |
| Slot Machine | Model 831-ZZH | 1973 | Bally Mfg. Co. Chicago, IL, USA |
| Slot Machine | Money Bank | 1973 | Brenco Weston-super-Mare, England |
| Coin-op Misc. game | Monte Carlo | 1973 | Allied Leisure Industries, Inc. Hialeah, FL, USA |
| Pinball | Monte Carlo Model 964 | 1973 | Bally Mfg. Co. Chicago, IL, USA |
| DEC GT40 soft. | Moonlander | 1973 | DEC Digital Equipment Corp. |
| Coin-op Misc. game | Moto Champ | 1973 | SEGA Enterprises, Ltd. Tokyo, Japan |
| BASIC soft. type-in | Mugwump | 1973 | DEC Digital Equipment Corp. |
| BASIC soft. type-in | N.F.U. Football | 1973 | DEC Digital Equipment Corp. |
| BASIC soft. type-in | Naval Ship Battle | 1973 | DEC Digital Equipment Corp. |
| BASIC soft. type-in | Nim | 1973 | DEC Digital Equipment Corp. |
| Pinball | Nip-It Model 940 | 1973 | Bally Mfg. Co. Chicago, IL, USA |
| BASIC soft. type-in | Number Game | 1973 | DEC Digital Equipment Corp. |
| Pinball | Odds & Evens Model 925 | 1973 | Bally Mfg. Co. Chicago, IL, USA |
| Dedicated Console |  Odyssee | 1973 | ITT Schaub-Lorenz Germany |
| Dedicated Console | Odyssey | 1973 | Wendaford, Ltd. |
| BASIC soft. type-in | Olympic Boxing | 1973 | DEC Digital Equipment Corp. |
| Arcade Video game | Olympic Tennis | 1973 | See-Fun |
| Arcade Video game | Olympic TV Football | 1973 | Chicago Dynamic Industries, Inc. |
| Arcade Video game | Olympic TV Hockey | 1973 | Chicago Dynamic Industries, Inc. |
| BASIC soft. type-in | Orbit | 1973 | DEC Digital Equipment Corp. |
| Dedicated Console | Overkal | 1973 | Inter Electronica S.A Spain |
| Pinball | OXO | 1973 | Williams Mfg. Co. Chicago, IL, USA |
| Arcade Video game | Paddle Battle | 1973 | Allied Leisure Industries, Inc. Hialeah, FL, USA |
| Arcade Video game | Paddle Derby Model 752-A | 1973 | Nutting Associates, Inc. NA Mountain View, CA, USA |
| Arcade Video game | Paddle Derby Model 752-B | 1973 | Nutting Associates, Inc. NA Mountain View, CA, USA |
| Arcade Video game | Paddle-Ball | 1973 | Williams Electronics, Inc. Chicago, IL, USA |
| Arcade Video game | Pallavolo | 1973 | Bertolino, F.lli Torino, Italy |
| IBM System/360 soft. | Peasant | 1973 | Newborn, Monroe |
| Coin-op Misc. game | Penny Pitch | 1973 | Williams Mfg. Co. Chicago, IL, USA |
| Pachinko | Pie Pie Game | 1973 | Fuji Shogi Co., Ltd. Japan |
| BASIC soft. type-in | Pizza | 1973 | DEC Digital Equipment Corp. |
