Counter-Strike: Global Offensive, abbreviated as CS:GO, full English name Counter-Strike: Global Offensive, is a multiplayer tactical first-person shooter developed by Valve in collaboration with Hidden Path Entertainment, officially released in 2012, operated in China by Perfect World, and became free-to-play in 2018. It is the sequel to the classic CS series, continuing the round-based competitive gameplay inherited from CS1.6, and is also a highly popular FPS esports title globally. The official sequel CS2 was later released, and CSGO has now become a historical version.
The game is divided into two factions: Terrorists (T) and Counter-Terrorists (CT), with round-based combat. There are no character abilities; victory depends on gunplay, grenade usage, team coordination, and a unique **economy system**. After each round, players earn in-game money based on the match result, which they use in the next round to buy firearms, body armor, helmets, and throwing items such as smoke grenades, flashbangs, and HE grenades. Economic choices are a major feature of the game: winning streaks allow full powerful loadouts; consecutive losses force players to "ECO" and save money, looking for a chance to turn things around next round.
The core mainstream gameplay is the **5v5 competitive mode**, with a maximum of 30 rounds, and the team that first wins 16 rounds is victorious. Classic maps include Dust2, Inferno, Nuke, etc. Besides competitive ranking, there are also casual, deathmatch, arms race, 2v2 wingman mode, danger zone battle royale, and various other entertainment modes, catering to both ranking up and casual relaxation needs.
CSGO's skin and item system is a major feature: various gun and knife skins **only change appearance and do not provide any attribute bonuses**, ensuring competitive fairness. Some rare items can be traded on the Steam Community Market, forming a unique player item ecosystem, but items are not essential for gameplay.
At the same time, CSGO has a mature esports tournament system, with international events represented by IEM and CSGO Major, gathering professional teams from around the world, and is a highly representative tournament in the FPS esports field.
Overall, the charm of CSGO lies in its extreme fairness, not relying on pay-to-win, but testing players' mentality, reaction speed, and team tactical thinking. It can be enjoyed as a casual game or deeply invested in competitive play, which is why it has long attracted players.