What's the meaning of Regen?

Sometimes when I read something on the Internet, they say it's a regen. What does a regen mean?

3798 2018-10-17 Lady

Catching a mob in the game and then showing up again

Gentleman 6 years ago 0

It stands for regeneration

Gentleman 6 years ago 0

I was supposed to talk about mob replay time in the game
They also talk about how fast writing is done on the Internet

Gentleman 6 years ago 0

On the Internet, the level of bulletin board activation is called glizen

Gentleman 6 years ago 0

These days, I use the word glizen a lot

Gentleman 6 years ago 0

Thank you for the explanation

Lady 6 years ago 0