The following games are tagged with collect-'em-up

Castle Quest
BBC Model B
Micro Power

Deep Core Raider
Spectrum 48K/128K
Cronosoft

Egghead In Space
Acorn Electron
Cronosoft

Firewall Wars
Amstrad CPC464
Navy Xicken

Future Looter
Spectrum 48K/128K
Monument Microgames

Hire Hare
Amstrad CPC464
CNGSoft

Jet Set Willy
Memotech
Software Projects

Jet Set Willy II
Acorn Electron
Tynesoft

Jet Set Willy: The Final Frontier
Amstrad CPC464
Software Projects

Monty Mole And The Temple Of Lost Souls
Spectrum 48K/128K/+2/+3
Bubblesoft

Monty's Honey Run
Spectrum 48K/128K/+2/+3
Bubblesoft

Oceano
Spectrum 48K/Plus
Ego-trip