You are missing 123 of 434 known Sinclair ZX-81 ROMS

3D Defender (19xx)(J.K. Greye Software)(nl)
3D Rotatie (19xx)(Frank Moquette)(nl)
8k Toolkit (19xx)(-)
Adressenbestand (19xx)(A.V. Oosten)(nl)
Alien Attack (19xx)(J. Jones)
Assembler (19xx)(-)
Assembler-82.4 (1982)(H.J. Koevoetes)(nl)
Asteroid Storm (19xx)(-)
Awari (19xx)(-)
Betta Basic (19xx)(-)
Betta Basic (19xx)(-)[a]
Block Move (19xx)(-)(nl)
Blokkade (1982)(AFJ)(nl)
Boekhouden (19xx)(-)(nl)
Bomber (19xx)(-)
Breakout (19xx)(-)
Bug Burst (19xx)(Hogroprog)
Camelot (1983)(C.C.S.)
Cassette Bestand (19xx)(-)(nl)
Cassette Index (19xx)(-)(nl)
Cassette Labels (19xx)(-)
Centpede (19xx)(-)(nl)
Charactersets Designprogram (19xx)(-)
Checkmate (19xx)(-)
City Patrol (1982)(Macronics)
Combat Flight (1982)(G. Manuel)
Compiler (19xx)(-)
Crash (1981)(-)
Damper (1982)(Quicksilva)
Damsel And The Beast, The (1981)(-)
Danger UXB (19xx)(-)
Data Handler Demo (19xx)(-)(nl)
Deep Space (19xx)(-)
Defence Force (19xx)(Greg Jarvis)
Demolition (1982)(Phipps Associates)
Detector (19xx)(-)(nl)
Digger 16k (19xx)(-)
Disassembler (19xx)(Campbell Systems)[a]
Disassembler Voor De ZX-81 Met Ingebouwde Relocator (19xx)(Leo van Dorp)(nl)
Disassembler Voor De ZX-81 Met Ingebouwde Relocator (19xx)(Leo van Dorp)(nl)[a]
Dodgems (19xx)(-)
Dracula (19xx)(S. Earl)
Dungeons (19xx)(-)
Egg (19xx)(-)
Escape (19xx)(Derf Software)(nl)
Escapes (19xx)(-)
European Countries And Capitals (19xx)(-)
Extended Basic Demo (1983)(Frits Beniest)
Farmer (1983)(C.C.S.)
Galaxians (1982)(T. Beckwith)
Ghosts (19xx)(-)
Gloops (1982)(T. Beckwith)[a]
Golf (19xx)(-)
Graf. ROM Routine (19xx)(-)(nl)
Graphics Toolkit (1982)(Paul Holmes)
Greyhound (19xx)(-)
Grieks Decoder (19xx)(Compuvision)
High Resolution Graphics (19xx)(-)
High Resolution Graphics (19xx)(-) [a]
Kolenmijn - Verkorte Spelregels (1983)(Rob van Staalduinen)(nl)
Laser Duel (19xx)(-)
Lichtkrant (1984)(MVS)(nl)
Looptekst (19xx)(-)(nl)
Maanlander (1982)(Rob van Staalduinen)(nl)
Martian Cricket (19xx)(-)
Meteors II (19xx)(-)
Microvaders (19xx)(-)(nl)
Mini-Monitor (19xx)(-)(nl)
Missile (1983)(M. V.D. Velden)(nl)
Mission Apollo (19xx)(-)(nl)
Music (ZX-80 Magic Book) (19xx)(-)(nl)
On-Eindige Kalender (19xx)(-)(nl)
Packman (1983)(Gammasoft)(nl)
Packman (19xx)(-)(nl)
Pacman (19xx)(Solidware)(nl)
Patience (19xx)(-)[a]
Phoenix Attack (19xx)(-)
Pinball (19xx)(-)
Pinball (19xx)(-)[a]
Pinball 2 (19xx)(-)(nl)
Pit With Monsters (19xx)(Jim Ennes)
Progmerge Ver. 004 (1983)(J.C. van Leijden)
Psion Backgammon (19xx)(Psion)
Pyramid (1981)(J.K. Greye)
Space Rescue (19xx)(-)
Speedball (19xx)(nl)
Stadhouder Van Flipflopland (1983)(Rob van Staalduinen)(nl)
Star Trail (19xx)(-)
Tekst-Editor (19xx)(-)(nl)
Telefoon Adressen Bestand (19xx)(-)(nl)
The Creaded Demon Domain (19xx)(-)
Toolkit (19xx)(-)
Toolkit 3 (19xx)(-)(nl)
Towns In England And Wales (19xx)(-)
Traffic - River (19xx)(-)
Turbo (19xx)(-)(nl)
UFO Invasie (19xx)(Alpha ZX-81 Software)(nl)
Utility (1983)(Contrast Software)
Vier Op Een Ry (19xx)(-)(nl)
Wall (19xx)(Mark Deenik)
ZX Centipede (19xx)(Jeff Minter)
ZX-81 Artist (1981)(J.K. Greye)
ZX-81 Bug Demonstration (19xx)(-)
ZX-81 Draft (1983)(Nick Buckenham)
ZXGT Compiler (1982)(PSS)
ZXTK Toolkit (19xx)(-)
ZZZ-UNK-3d-netwe
ZZZ-UNK-animatio
ZZZ-UNK-astroid
ZZZ-UNK-boardgam
ZZZ-UNK-bombrun
ZZZ-UNK-breaker
ZZZ-UNK-compac
ZZZ-UNK-eeuwkalender
ZZZ-UNK-hexloade
ZZZ-UNK-landscap
ZZZ-UNK-special-(nl)
ZZZ-UNK-stringlo
ZZZ-UNK-submarin
ZZZ-UNK-tasw-kar
ZZZ-UNK-toolkit
ZZZ-UNK-toolkit4
ZZZ-UNK-toolkit6