is this a good game?

hello can anyone tell if its a worth playing game...im planning to buy and play it?

To be honest. I would give Overwatch a solide 7/10. It's a great game to play with friends but its not really anything interesting or new. Overwatch features many different heroes which can be overwhelming to new players who are starting out in the game.

What is Garrys mod exactly? Its not very clear from the steam profile? What exactly do you do?