| Name | Description | Year | Manufacturer | Rom | Clone | Sample |
| pr_nifty | Nifty Fifty (Project) (PROCONN) | 199? | Project | | | |
| pr_nudxs | Nudge XS (Project) (PROCONN) | 199? | Project | | | |
| pr_qksht | Quickshot (Maygay) (PROCONN) | 199? | Maygay | | | |
| pr_rags | Rags To Riches (Project) (PROCONN) | 199? | Project | | | |
| pr_reflx | Reflex (Project) (PROCONN) | 199? | Project | | | |
| pr_roadr | Road Riot (Project) (PROCONN) | 199? | Project | | | |
| pr_roll | The Roll (Project) (PROCONN) | 199? | Project | | | |
| pr_sevab | Seven's Above (Project) (PROCONN) | 199? | Project | | | |
| pr_sevml | Sevens & Melons (Project) (PROCONN) | 199? | Project | | | |
| pr_sptb | Simply the Best (Pcp) (PROCONN?) | 199? | Pcp | | | |
| pr_supbr | Super Bars (PCP) (PROCONN) | 199? | PCP | | | |
| pr_swop | Swop It (Ace) | 199? | Ace | | | |
| pr_theme | Theme Park (Project) (PROCONN) | 199? | Project | | | |
| pr_trktp | Trick or Treat (Protocol?) (Project) (PROCONN) | 1999 | Project | | | |
| pr_trktr | Trick or Treat (Project) (PROCONN) | 1999 | Project | | | |
| pr_trpx | Triple X (Project) (PROCONN) | 199? | Project | | | |
| pr_ttrai | Treasure Trail (Project) (PROCONN) | 199? | Project | | | |
| pr_upnun | Up & Under (Project) (PROCONN) | 199? | Project | | | |
| pr_walls | Wall Street (Project) (PROCONN) | 199? | Project | | | |
| pr_whlft | Wheel Of Fortune (Project) (PROCONN) | 199? | Project | | | |
| pr_wldkn | Wild Kings (Project) (PROCONN) | 199? | Project | | | |
| pr_wnstk | Winning Streak (Version 1.1) (Coinworld) | 199? | Coinworld | | | |
| pr100 | PR-100 Digital Sequencer (v2.02) | 1987 | Roland | | | |
| pr100_201 | PR-100 Digital Sequencer (v2.01) | 1987 | Roland | pr100 | pr100 | |
| pr7820 | Pioneer PR-7820 | | | | | |
| pr8210 | Pioneer PR-8210 | | | | | |
| prailpls | Boku wa Plarail Untenshi Shinkansen de Ikou! Plus (Japan) | 2015 | Takara Tomy | | | |
| prav82 | Pravetz 82 | 1982 | Pravetz | apple2 | apple2 | |
| prav8c | Pravetz 8C | 1989 | Pravetz | apple2e | apple2e | |
| prav8d | Pravetz 8D | 1985 | Pravetz | oric1 | oric1 | |
| prav8dd | Pravetz 8D (Disk ROM) | 1989 | Pravetz | oric1 | oric1 | |
| prav8m | Pravetz 8M | 1985 | Pravetz | apple2 | apple2 | |
| prc28su | Print Club 2 Vol. 8 '97 Summer (J 970616 V1.100) | 1997 | Atlus | stvbios | | |
| prc297wi | Print Club 2 '97 Winter Ver (J 971017 V1.100, set 1) | 1997 | Atlus | stvbios | | |
| prc297wia | Print Club 2 '97 Winter Ver (J 971017 V1.100, set 2) | 1997 | Atlus | prc297wi | prc297wi | |
| prc298au | Print Club 2 '98 Autumn Ver (J 980827 V1.000) | 1998 | Atlus | stvbios | | |
| prc298sp | Print Club 2 '98 Spring Ver (J 971017 V1.100) | 1998 | Atlus | stvbios | | |
| prc298su | Print Club 2 '98 Summer Ver (J 980603 V1.100) | 1998 | Atlus | stvbios | | |
| prc29au | Print Club 2 Vol. 9 Autumn (J V1.100) | 1997 | Atlus | stvbios | | |
| prc2ksu | Print Club 2 2000 Summer (J 000509 V1.000) | 2000 | Atlus | stvbios | | |
| prdgp03 | Pride GP 2003 (PR21 Ver. A) | 2003 | Namco | sys246 | | |
| prehisle | Prehistoric Isle in 1930 (World) | 1989 | SNK | | | |
| prehisleb | Prehistoric Isle in 1930 (World, bootleg) | 1989 | bootleg | prehisle | prehisle | |
| prehislek | Wonsido 1930's (Korea) | 1989 | SNK (Victor license) | prehisle | prehisle | |
| prehisleu | Prehistoric Isle in 1930 (US) | 1989 | SNK | prehisle | prehisle | |
| preisle2 | Prehistoric Isle 2 | 1999 | Yumekobo / Saurus | neogeo | | |
| premier_fdc | Premier FDC | | | | | |
| premiere | Elite Premiere | 1992 | Fidelity Electronics International | | | |
| prestige | PreComputer Prestige Elite | 1998 | VTech | | | |
| prestmpt | Prestige Video Computer Game MPT-03 | 198? | Prestige | intmpt03 | intmpt03 | |
| prideaf | Pride of Africa (10208511, NSW/ACT) | 2005 | Aristocrat | aristmk6 | | |
| prikura | Princess Clara Daisakusen (J 960910 V1.000) | 1996 | Atlus | stvbios | | |
| primella | Primella (Japan, NTC license) | 1994 | Dooyong (NTC license) | gundl94 | gundl94 | |
| primetime | Apple PrimeTime I/O ASIC | | | | | |
| primetime2 | Apple PrimeTime II I/O ASIC | | | | | |
| primevah | Primeval Hunt | 2008 | Sega | lindbios | | |
| primglex | Prime Goal EX (Japan, PG1/VER.A) | 1996 | Namco | | | |
| primoa32 | Primo A-32 | 1984 | Microkey | | | |
| primoa48 | Primo A-48 | 1984 | Microkey | primoa32 | primoa32 | |
| primoa64 | Primo A-64 | 1984 | Microkey | primoa32 | primoa32 | |
| primob32 | Primo B-32 | 1984 | Microkey | primoa32 | primoa32 | |
| primob48 | Primo B-48 | 1984 | Microkey | primoa32 | primoa32 | |
| primob64 | Primo B-64 | 1984 | Microkey | primoa32 | primoa32 | |
| primoc64 | Primo C-64 | 1984 | Microkey | primoa32 | primoa32 | |
| primrag2 | Primal Rage 2 (Ver 0.36a) | 1996 | Atari | coh1000w | | |
| primrage | Primal Rage (version 2.3, Jan 1995) | 1994 | Atari Games | | | |
| primrage20 | Primal Rage (version 2.0) | 1994 | Atari Games | primrage | primrage | |
| primrageo | Primal Rage (version 2.3, Dec 1994) | 1994 | Atari Games | primrage | primrage | |
| primusex | Primus Expert mit Stimme | 1994 | Yeno | | | |
| princ | Prin-C Tablet | 1997? | Tomy | | | |
| princess | Cosmic Princess | 1979 | Stern | | | genpin |
| princnt | Prin-C (Rev 1) | 1996? | Tomy | princ | princ | |
| princnt3 | Prin-C (Rev 3) | 1996? | Tomy | princ | princ | |
| printer_image | Printer | | | | | |
| prisma | Kasparov Prisma | 1990 | Saitek / Heuristic Software | | | |
| prmrsocr | Premier Soccer (ver EAB) | 1993 | Konami | | | |
| prmrsocrj | Premier Soccer (ver JAB) | 1993 | Konami | prmrsocr | prmrsocr | |
| prmtmfgt | Prime Time Fighter (Ver 2.1A 1993/05/21) (New Version) | 1993 | Taito America Corporation | trstar | trstar | |
| prmtmfgto | Prime Time Fighter (Ver 2.1A 1993/05/21) (Old Version) | 1993 | Taito America Corporation | trstar | trstar | |
| pro128 | Prodest PC 128 | 1986 | Olivetti / Thomson | mo6 | mo6 | |
| pro128s | Prodest PC 128S | 1987 | Olivetti | bbcmc | bbcmc | bbc |
| pro80 | Pro-80 | 1981 | Protec | | | |
| probowl2 | Pro Bowl 2 | 1996 | Zuck / Able Corp | nprobowl | nprobowl | |
| procuss | Pro/Cussion Maximum Percussion Module | 1991 | E-mu Systems | | | |
| prodigy | Destiny Prodigy | 1982 | Applied Concepts | | | |
| prof180x | PROF-180X | 1986 | Conitec Datensysteme | | | |
| prof181x | PROF-181X | 1992 | Conitec Datensysteme | prof180x | prof180x | |
| prof80 | PROF-80 | 1984 | Conitec Datensysteme | | | |
| prof80_mmu | PROF80 MMU | | | | | |
| profi | Profi | 1991 | Kondor and Kramis | spec128 | spec128 | |
| profighterq | Super Pro. Fighter Q (variant 1) | | | | | |
| profighterqa | Super Pro. Fighter Q (variant 2) | | | | | |
| profighterqb | Super Pro. Fighter Q (variant 3) | | | | | |
| profighterx | Pro Fighter X (MB03D) | | | | | |
| profpac | Professor Pac-Man | 1983 | Dave Nutting Associates / Bally Midway | | | |
| profpc33 | PC 33 | 1990 | Profex | ibm5170 | ibm5170 | |
| profweis | Professor Weiss-Alles | 1988 | Video Technology / Yeno | socrates | socrates | |
| progear | Progear (USA 010117) | 2001 | Cave (Capcom license) | | | |
| progeara | Progear (Asia 010117) | 2001 | Cave (Capcom license) | progear | progear | |
| progearj | Progear no Arashi (Japan 010117) | 2001 | Cave (Capcom license) | progear | progear | |
| progearjbl | Progear no Arashi (Japan 010117) (decrypted bootleg) | 2001 | bootleg | progear | progear | |
| progearjd | Progear no Arashi (Japan 010117 Phoenix Edition) (bootleg) | 2001 | bootleg | progear | progear | |
| progearud | Progear (USA 010117 Phoenix Edition) (bootleg) | 2001 | bootleg | progear | progear | |
| progolf | 18 Holes Pro Golf (set 1) | 1981 | Data East Corporation | | | |
| progolfa | 18 Holes Pro Golf (set 2) | 1981 | Data East Corporation | progolf | progolf | |
| progress | Progress | 1984 | Chuo Co. Ltd | | | |
| prolite286 | Prolite 286/16 | 198? | CAF | ibm5170 | ibm5170 | |
| promotion_vga | Alliance ProMotion VGA i/f | | | | | |
| promotion3210 | Alliance Semiconductor ProMotion 3210 | | | | | |
| promutrv | Progressive Music Trivia (Question set 1) | 1985 | Enerdyne Technologies Inc. | | | |
| promutrva | Progressive Music Trivia (Question set 2) | 1985 | Enerdyne Technologies Inc. | promutrv | promutrv | |
| promutrvb | Progressive Music Trivia (Question set 3) | 1985 | Enerdyne Technologies Inc. | promutrv | promutrv | |
| promutrvc | Progressive Music Trivia (Question set 4) | 1985 | Enerdyne Technologies Inc. | promutrv | promutrv | |
| propcycl | Prop Cycle (World, PR2 Ver.A) | 1996 | Namco | | | |
| propcyclj | Prop Cycle (Japan, PR1 Ver.A) | 1996 | Namco | propcycl | propcycl | |
| prophecy | Prophecy (20173411, NSW/ACT) | 2004 | Aristocrat | aristmk6 | | |
| prose2k | Prose 2000/2020 v3.4.1 | 1987 | Telesensory Systems Inc/Speech Plus | | | |
| prose2ko | Prose 2000/2020 v1.1 | 1982 | Telesensory Systems Inc/Speech Plus | prose2k | prose2k | |
| prosoccr | Pro Soccer | 1983 | Data East Corporation | | | |
| prosport | Pro Sports - Bowling, Tennis, and Golf | 1983 | Data East Corporation | | | |
| prosporta | Pro Sports - Bowling, Tennis, and Golf (USA) | 1983 | Data East Corporation (Digital Controls license) | prosport | prosport | |
| protenn | Pro Tennis (Japan) | 1982 | Data East Corporation | | | |
| protennb | Tennis (bootleg of Pro Tennis) | 1982 | bootleg | protenn | protenn | |
| proteus | Poly Proteus (Standalone) | 1982 | Polycorp | | | |
| proteus1 | Proteus/1 16-Bit Multi-Timbral Digital Sound Module | 1989 | E-mu Systems | | | |
| proteus3 | Proteus III | 1978 | Proteus International | | | |
| proteusxr | Proteus/1 XR 16-Bit Multi-Timbral Digital Sound Module | 1989 | E-mu Systems | | | |
| protpp | Virtual Ping Pong (Protocol) | 200? | Protocol | | | |
| prpht600 | Prophet-600 | 1983 | Sequential Circuits | | | |
| prsarcde | Personal Arcade | 1988 | Telegames | czz50 | czz50 | |
| prschess | President Chess | 1982 | SciSys / Heuristic Software | | | |
| prtyanim | Party Animal | 1987 | Bally | | | genpin |
| prtyanimg | Party Animal (German) | 1987 | Bally | prtyanim | prtyanim | genpin |
| prtytime | Party Time: Gonta the Diver II / Ganbare! Gonta!! 2 (World Release) | 1995 | Mitchell | | | |
| przfight | Prize Fight (0100299V, NSW/ACT) | 1996 | Aristocrat | aristmk5 | | |
| przone_jamma_if | ISA16 Prize Zone custom JAMMA I/F | | | | | |
| przonegd | Prize Zone Gold (USA, v2.01) | 1997 | Lazer-Tron | | | |
| ps2 | PlayStation 2 | 2000 | Sony | | | |
| ps2_keybc | PS/2 Keyboard/Mouse Controller | | | | | |
| ps2dmac | PlayStation 2 EE DMAC | | | | | |
| ps2gif | Playstation 2 GIF | | | | | |
| ps2gs | Playstation 2 GS | | | | | |
| ps2intc | PlayStation 2 EE INTC | | | | | |
| ps2mc | PlayStation 2 Memory Card | | | | | |
| ps2pad | Sony DualShock 2 | | | | | |
| ps2sif | PlayStation 2 SIF | | | | | |
| ps2timer | PlayStation 2 EE Core Timer | | | | | |
| ps2vif1 | PlayStation 2 VIF1 | | | | | |
| ps400 | PS-400 | 1982 | Yamaha | | | |
| psa | Sony PlayStation (Asia-Pacific) | 1995 | Sony Computer Entertainment Inc | psj | psj | |
| psailor1 | Bishoujo Janshi Pretty Sailor 18-kin (Japan) | 1994 | Sphinx | | | |
| psailor2 | Bishoujo Janshi Pretty Sailor 2 (Japan) | 1994 | Sphinx | | | |
| psattack | P's Attack | 2004 | Uniana | | | |
| pse | Sony PlayStation (Europe) | 1995 | Sony Computer Entertainment Inc | psj | psj | |
| pseudo_terminal | Pseudo Terminal | | | | | |
| psi_hle_kbd | PSI HLE Keyboard | | | | | |
| psi_kbd | PSI Keyboard Interface | | | | | |
| psi98 | PSI98 | 1984 | Kontron | | | |
| psion_3fax | Psion 3-Fax Modem | | | | | |
| psion_3link_par | Psion 3-Link Parallel Printer Interface | | | | | |
| psion_3link_ser | Psion 3-Link RS232 Serial Interface | | | | | |
| psion_asic1 | Psion ASIC1 | | | | | |
| psion_asic2 | Psion ASIC2 | | | | | |
| psion_asic4 | Psion ASIC4 | | | | | |
| psion_asic5 | Psion ASIC5 | | | | | |
| psion_asic9 | Psion ASIC9 V30H | | | | | |
| psion_asic9mx | Psion ASIC9 V30MX | | | | | |
| psion_condor | Psion Condor | | | | | |
| psion_honda_slot | Psion Honda Expansion slot | | | | | |
| psion_module_slot | Psion Extended Internal Expansion slot | | | | | |
| psion_parallel | Psion Parallel Printer Link cable | | | | | |
| psion_pclink | Psion PC Link cable | | | | | |
| psion_psu_asic3 | Psion PSU (ASIC3) | | | | | |
| psion_psu_asic5 | Psion PSU (ASIC5) | | | | | |
| psion_serpar | Psion RS232/Parallel Module | | | | | |
| psion_sibo_slot | Psion Reduced External Expansion slot | | | | | |
| psion_siena_ssd | Psion Siena SSD Drive | | | | | |
| psion_ssd | Psion Solid State Disk | | | | | |
| psion1 | Organiser I | 1984 | Psion | | | |
| psion3 | Series 3 | 1991 | Psion | | | |
| psion3a | Series 3a | 1993 | Psion | | | |
| psion3a_codec | Series 3a A-law Codec | | | | | |
| psion3a2 | Series 3a (2M) | 1995 | Psion | psion3a | psion3a | |
| psion3a2_de | Series 3a (2M) (German) | 1995 | Psion | psion3a | psion3a | |
| psion3a2_it | Series 3a (2M) (Italian) | 1995 | Psion | psion3a | psion3a | |
| psion3a2_ru | Series 3a (2M) (Russian) | 1997 | Psion | psion3a | psion3a | |
| psion3a2_us | Series 3a (2M) (US) | 1995 | Psion | psion3a | psion3a | |
| psion3c | Series 3c | 1996 | Psion | | | |
| psion3mx | Series 3mx | 1998 | Psion | | | |
| psion3mx_fr | Series 3mx (French) | 1998 | Psion | psion3mx | psion3mx | |
| psion3s | Series 3s | 1994 | Psion | psion3 | psion3 | |
| psion5mx | Series 5mx | 1999 | Psion | | | |
| psioncm | Organiser II CM | 1986 | Psion | | | |
| psionhc100 | HC 100 | 1991 | Psion | psionhc120 | psionhc120 | |
| psionhc110 | HC 110 | 1991 | Psion | psionhc120 | psionhc120 | |
| psionhc120 | HC 120 | 1991 | Psion | | | |
| psionla | Organiser II LA | 1986 | Psion | psioncm | psioncm | |
| psionlam | Organiser II LAM | 1986 | Psion | psioncm | psioncm | |
| psionlz | Organiser II LZ | 1989 | Psion | | | |
| psionlz64 | Organiser II LZ64 | 1989 | Psion | psionlz | psionlz | |
| psionlz64s | Organiser II LZ64S | 1989 | Psion | psionlz | psionlz | |
| psionp200 | Organiser II P200 | 1986 | Psion | psioncm | psioncm | |
| psionp350 | Organiser II P350 | 1986 | Psion | psioncm | psioncm | |
| psionp464 | Organiser II P464 | 1989 | Psion | psionlz | psionlz | |
| psionwa | Workabout | 1995 | Psion | | | |
| psionwamx | Workabout mx | 1998 | Psion | | | |
| psionxp | Organiser II XP | 1986 | Psion | psioncm | psioncm | |
| psj | Sony PlayStation (Japan) | 1994 | Sony Computer Entertainment Inc | | | |
| psmash3 | Power Smash 3 / Virtua Tennis 3 (Export) | 2006 | Sega | lindbios | | |
| psoldier | Perfect Soldiers (Japan) | 1993 | Irem | ssoldier | ssoldier | |
| pspikes | Power Spikes (World) | 1991 | Video System Co. | | | |
| pspikes2 | Power Spikes II (NGM-068) | 1994 | Video System Co. | neogeo | | |
| pspikesb | Power Spikes (bootleg) | 1991 | bootleg | pspikes | pspikes | |
| pspikesba | Power Spikes (Italian bootleg) | 1991 | bootleg (Playmark?) | pspikes | pspikes | |
| pspikesc | Power Spikes (China, bootleg) | 1991 | bootleg | pspikes | pspikes | |
| pspikesk | Power Spikes (Korea) | 1991 | Video System Co. | pspikes | pspikes | |
| pspikesm | Power Spikes (Modular System) | 199? | bootleg (Gaelco / Ervisa) | pspikes | pspikes | |
| pspikesu | Power Spikes (US) | 1991 | Video System Co. | pspikes | pspikes | |
| psr11 | Portatone PSR-11 | 1986 | Yamaha | | | |
| psr110 | PSR-110 | 1993 | Yamaha | psr150 | psr150 | |
| psr150 | PSR-150 | 1992 | Yamaha | | | |
| psr16 | PSR-16 | 1988 | Yamaha | | | |
| psr160 | PSR-160 | 2000 | Yamaha | psr260 | psr260 | |
| psr180 | PSR-180 | 1994 | Yamaha | | | |
| psr190 | PSR-190 | 1996 | Yamaha | | | |
| psr2000 | PSR-2000 | 2001 | Yamaha | | | |
| psr260 | PSR-260 | 2000 | Yamaha | | | |
| psr340 | PSR-340 PortaSound | 1994 | Yamaha | | | |
| psr36 | PSR-36 | 1988 | Yamaha | | | |
| psr40 | PSR-40 | 1985 | Yamaha | | | |
| psr500 | PSR-500 | 1991 | Yamaha | | | |
| psr540 | PSR540 | 1999 | Yamaha | | | |
| psr60 | PSR-60 PortaSound | 1985 | Yamaha | | | |
| psr70 | PSR-70 PortaSound | 1985 | Yamaha | psr60 | psr60 | |
| psr75 | PSR-75 | 1992 | Yamaha | psr150 | psr150 | |
| psr76 | PSR-76 | 1994 | Yamaha | psr180 | psr180 | |
| psr78 | PSR-78 | 1996 | Yamaha | psr190 | psr190 | |
| psr79 | PSR-79 | 1998 | Yamaha | | | |
| psrockmn | Panic Shot Rockman | 1992 | Capcom | | | |
| pss11 | PSS-11 | 1992 | Yamaha | psr150 | psr150 | |
| pss12 | PSS-12 | 1994 | Yamaha | | | |
| pss21 | PSS-21 | 1992 | Yamaha | psr150 | psr150 | |
| pss31 | PSS-31 | 1992 | Yamaha | psr150 | psr150 | |
| pss480 | PSS-480 / PSS-580 | 1988 | Yamaha | | | |
| pss6 | PSS-6 | 1994 | Yamaha | pss12 | pss12 | |
| pss61 | Super Mario Kart / Super Mario Collection / Star Fox (Super Famicom Box) | 1994 | Nintendo | sfcbox | | |
| pss62 | New Super 3D Golf Simulation - Waialae no Kiseki / Super Mahjong 2 (Super Famicom Box) | 1994 | T&E Soft / I'Max | sfcbox | | |
| pss63 | Super Donkey Kong / Super Tetris 2 + Bombliss (Super Famicom Box) | 1994 | Nintendo / BPS | sfcbox | | |
| pss64 | Super Donkey Kong / Super Bomberman 2 (Super Famicom Box) | 199? | Nintendo / Hudson Soft | sfcbox | | |
| pss680 | PSS-680 | 1988 | Yamaha | | | |