Slime Castle is a cute tower defense game where the war between slime and knights rages. Perhaps you’re the chosen one who can save the little slugs from tyranny?
Working codes for Slime Castle
| SPRING4U | Resources |
| SUNDAYFM | Resources |
How to get new Slime Castle codes?
New codes for Slime Castle are coming to our Telegram channel.Follow @guidesgame to receive the latest working codes immediately after publication.
History of code changes
Latest updates on this page
April 2, 2026—added code SPRING4U
April 1, 2026—LOVEMARCH code has expired
March 2, 2026—Added code LOVEMARCH
March 1, 2026-code LOVEFEB26 expired
February 7, 2026—code LOVEFEB26 added
February 6, 2026—NEW4JAN code expired
January 7, 2026–CHEER4DEC code expired
January 1, 2026—code NEW4JAN added
December 16, 2025—CHEER4DEC code added
December 11, 2025—SUNDAYFM code added
Expired codes
| LOVEMARCH |
| LOVEFEB26 |
| NEW4JAN |
| CHEER4DEC |
Where to enter codes
1. Click on the gear in the upper right corner of the screen.
2. In the menu that opens, select the “Activation Code” option.
