Kensington 72111 USB/PS2 3-Button Optical Wireless Mouse- NEW | eBay
Sweex PS/2 Muis
PS2 keyboard- muis extensioncable, 3 m | ACT
Perixx 10442 Perimice-209 P bekabelde PS2-muis met scrollwiel en optische resolutie met 1000 DPI voor computer, 1,8 m kabel, zwart : Amazon.nl: Elektronica
Targus 3 Button Optical USB/PS2 Mouse op bruneau.be
PlayStation Mouse - Wikipedia
Wat is PS/2?, en het Mouse/Keyboard Protocol
PS2 optische muis (used) – Webshop HeinPragt.nl
Optische Muis Zwart PS/2 YPM220 | bol.com
Thanks to @El_Topo_54 advice I found a working mouse for my PS2. I tried Half Life 2 and Soldier of fortune :) . Any other games I should try with this? : r/ps2