If you're just now using lockdown as an excuse to upgrade your gaming gear, then I commend your commitment to being a responsible citizen in the midst of a pandemic, even if I do question your timing. Nevertheless, Amazon has a suite of new deals to help you upgrade both your setup and your library without having too big an impact on your wallet.
First up, peripherals. The Rejea R1 Gaming Headset works across the PS4, Xbox One, and PC, and happens to be 15% off, while the Snakebyte Headset S is down 13%. If you're trying to de-clutter, the Snakebyte Charge: Tower is available for both PS4 and Xbox One, and features two USB charging points as well as storage for 15 game cases, which should free up some space around your TV.
When it comes to games, you can pick up Darksiders III for Xbox One at 30% off, or grab the Warmastered edition of the original on Switch for 10% off. If hacking and slashing isn't for you, however, you can pick up JRPG-inspired Battle Chasers: Nightwar on Switch for just £14.10, or grab the Titan Quest: Collector's Edition on Xbox at the knockdown price of £32.88.