It has multiplayer and single player. Single doesn't have a campaign or story line, but you can play with bots (that don't move or shoot).
You Dont
Team Fortress 2 was invented to entertain people as an online, first-person shooter and generate profit for its developers (Valve). It is a sequel to Team Fortress Classic, which was an adaptation of the popular quake modification , Team Fortress.
Yes, the entire game revolves around online interaction.
no
Team Fortress 2. Minecraft. <--- CobbleCarp
Yes, if you are on a PC.
none specifically. Team Fortress 2 does NOT give you a virus.
Team Fortress 2 was initially a Quake Mod (Team Fortress), for Capture the Flag and Team Deathmatch
Team Fortress 2 is the sequel to the video game Team Fortress. There are similar characters and missions in both games, but the main differences are the new maps and new statistics capability in Team Fortress 2.
Team Fortress Classic and Team Fortress 2 is developed by Valve Inc.
You have to pay for the game, but to play online is free.
No, there are no throwable grenades in Team Fortress 2