If you strictly want a free "Worms" experience on your PC browser without a purchase, you should look at:
The game is currently on special promotion for $4.39 (discounted from $21.99), with the sale ending April 27, 2026. Worms Rumble PC Download Free
A popular, free-to-play .io style game that uses similar worm-growth mechanics and can be played directly in a web browser. If you strictly want a free "Worms" experience
As of April 2026, , but it often goes on sale for over 90% off. with the sale ending April 27