| PC/MS-Windows pack. |  Magyechon Online | 2013 | GJ E&M Corp. Korea |
| Arcade Video game | Mahjong Fight Club - Itadaki no Zin | 2013 | Konami Digital Ent. Co., Ltd. |
| Arcade Video game | Mahjong Gunnyuu Kakkyo | 2013 | Techno-Top, Ltd. Japan |
| Sony PSN: PSone Classics pack. |  Mahjong Uranai Fortuna - Tsuki no Megami-tachi Model NPUJ-????? | 2013 | GungHo Online Ent. |
| Sony PSN: PSone Classics pack. | Mahjong Youchien - Tamago Gumi 2 Model NPUF-30039 | 2013 | GungHo Online Ent. |
| Sony PSN: PSone Classics pack. | Mahjong Youchien - Tamago Gumi Model NPUF-30040 | 2013 | GungHo Online Ent. |
| Arcade Video game | maimai Green | 2013 | SEGA Corp. |
| Slot Machine | Majestic Beauty | 2013 | IGT International Game Technologies Reno, NV, USA |
| Sony PlayStation 3 disc | Majo to Hyaku Kihei Model BLJS-10160 | 2013 | Nippon Ichi Soft., Inc. Japan |
| MSX cart. | Malaika Hb | 2013 | Relevo Videogames Spain |
| Medal video game | Manpuku Suizokukan | 2013 | SEGA Corp. |
| PC/MS-Windows CD | March of the Eagles | 2013 | Paradox Interactive |
| Slot Machine | Marilyn Purple Lounge | 2013 | AGI Austrian Gaming Industries Novomatic Group |
| Slot Machine | Marilyn Wild Fifties | 2013 | AGI Austrian Gaming Industries Novomatic Group |
| Slot Machine | Marilyn's Poker II | 2013 | AGI Austrian Gaming Industries Novomatic Group |
| Nintendo Wii U disc | Mario & Sonic at the Olympic Winter Games - Sochi 2014 Model WUP-AURE-USA | 2013 | Nintendo of America, Inc. USA 45496 |
| Arcade Video game | Mario Kart Arcade GP DX | 2013 | NAMCO Bandai Games, Inc. Japan |
| Nintendo Wii disc |  Mario Party 9 Model RVL-SSQK-KOR | 2013 | Nintendo Co., Ltd. Japan |
| PC/MS-Windows CD | Marlow Briggs | 2013 | 505 Games srl Italy |
| PC/MS-Windows CD | Mars - War Logs | 2013 | Focus Home Interactive S.A.S. |
| Slot Machine | Marvel IRON MAN | 2013 | WMS Gaming, Inc. Chicago, IL, USA |
| PC/MS-Windows CD | Marvel Puzzle Quest - Dark Reign | 2013 | D3 Publisher, Inc. |
| Pachinko | Mashin Eiyuu Den Wataru | 2013 | Toyomaru Japan |
| BlackBerry pack. | Mass Effect - Infiltrator | 2013 | Unknown |
| Sony PlayStation 3 disc | Mass Effect 3 Model BLJM-60585 | 2013 | Electronic Arts CA, USA 14633 |
| Mattel Intellivision cart. | Match 5 Hb | 2013 | Elektronite |
| Amstrad CPC cass. | Maziacs | 2013 | Unknown |
| MSX cart. | Mecha 8 Hb | 2013 | Matra Computer Automations Spain |
| Slot Machine | Medieval Gold | 2013 | Incredible Technologies, Inc. Rolling Meadows, IL, USA |
| Slot Machine | Mega Joker | 2013 | AGI Austrian Gaming Industries Novomatic Group |
| BlackBerry pack. | Mega Turrican | 2013 | Unknown |
| PC/MS-Windows pack. | Megabyte Punch | 2013 | GOG sp. z o.o. |
| Arcade Video game | Megatouch Ion 2013 | 2013 | Merit Industries, Inc. |
| PC/MS-Windows pack. | Memoria | 2013 | GOG sp. z o.o. |
| Sony PS Vita game | Memories Off - Yubikiri no Kioku | 2013 | 5pb. Japan |
| Sony PlayStation 3 disc | Memories Off - Yubikiri no Kioku | 2013 | 5pb. Japan |
| Sony PS Vita game | Memories Off 6 Complete | 2013 | 5pb. Japan |
| Sony PlayStation 3 disc | Memories Off 6 Complete | 2013 | 5pb. Japan |
| Sony PS Vita game | Meruru no Atelier Plus - Arland no Renkinjutsushi 3 Model VLJM-35036 | 2013 | Gust Japan |
| Microsoft XBOX 360 disc | Metal Gear Rising - Revengeance | 2013 | Konami Digital Ent. Co., Ltd. |
