Valve / ESL FACEIT Group

Knife round determines side selection

Before a competitive match, both teams rush mid-map armed only with knives to contest side choice. The winning team picks CT or T side. Refusing or running from the knife round is seen as unsportsmanlike. This ritual is observed at LANs, FaceIt hubs, and organized pick-up games and is a defining marker of competitive CS culture.

Sometimes replaced by a coin flip in official tournament brackets, but the knife round remains the norm in grassroots and semi-pro competition.

Say "GG" at match end — never "GG EZ"

Typing 'GG' in all-chat when the match concludes is expected sportsmanship. Typing 'GG EZ' — implying the match was trivially easy — is considered one of the most disrespectful acts in competitive CS. Valve directly acknowledged the community norm by adding a filter in CS:GO that auto-replaces the phrase with a self-deprecating message.

Valve introduced the GG EZ auto-replace filter in 2016, citing community consensus that the phrase was toxic. The filter itself is documentation of the unwritten rule.

Don't break team eco

When a team calls an eco round — saving money to fund a full buy next round — every player is expected to save, even if they personally can afford a rifle. Buying breaks the team's coordinated economy, strands eco teammates in 1v2 situations, and signals poor teamwork. Repeated eco breaks are considered a serious breach of team responsibility at all competitive levels.

Less enforced in uncoordinated casual modes, but becomes a hard social expectation the moment players are communicating on voice.

CT-side last alive: attempt the defuse, don't save

When the bomb is planted and time remains, a CT player — especially the last alive — is expected to fight for the defuse rather than retreating to preserve their weapon. Hiding with a rifle while the bomb ticks down is widely condemned as a betrayal of team play. The expression 'don't be a saver' is a staple of competitive CS communication.

AWP belongs to the designated AWPer

In organized team play, the AWP is understood to be 'owned' by a designated sniper. Other players should not buy the AWP or pick it up from the ground unless the designated player has died or explicitly relinquished it. Hoarding the AWP away from the team's sniper disrupts role structure and is seen as a significant lapse in team discipline.

Most relevant at organized-team and FaceIt level; in solo matchmaking there is no formal designation, but calling for the AWP early in voice chat serves the same function.

Don't abuse voice chat or play audio through mic during rounds

Playing music, blasting sound effects, or spamming the microphone during active rounds is treated as griefing and is among the most cited forms of in-game toxicity in CS competitive culture. Voice chat during rounds is reserved for callouts and coordination; abusing it to annoy, distract, or drown out teammates violates the basic social contract of team play.