Twitch reveals the 5 most-watched games of 2025; surprise shocks fans

Counter-Strike dominated Twitch viewership in 2025, establishing itself as the most-watched esport of the year with overwhelming numbers. Meanwhile, League of Legends took silver, but shone with the highest concurrent viewership peak in history during Worlds. However, the big surprise on the list was Rainbow Six Siege’s unexpected entry into the Top 5, dethroning heavyweight contenders many took for granted.

According to the latest data from Esports Charts, the competitive scene remains concentrated on veteran titles that set the pace for the global market. Moreover, the gap between the elite pack and fifth place is still huge, with a distance exceeding 150 million hours watched. That is why Ubisoft’s feat with Siege takes on an underdog dimension on the platform.

The 5 most-watched esports on Twitch in 2025

• 1. Counter-Strike: 372 million hours watched
• 2. League of Legends: 307 million hours watched
• 3. Dota 2: 213 million hours watched
• 4. Valorant: 185 million hours watched
• 5. Rainbow Six Siege: 34.76 million hours watched

Records and what to expect in 2026

Although CS leads in total airtime, LoL Worlds 2025 was the biggest single event of the year, reaching an impressive peak of 166 million concurrent viewers. Building on that success, Ubisoft is already preparing the Six Invitational to kick off this Monday, February 2, 2026. The company plans to hand out exclusive rewards via Twitch Drops across every stage of the tournament to try to hold its ranking position.

As such, the 2026 season promises to be even more hotly contested with the arrival of new competitions such as the Esports Nations Cup. It remains to be seen whether Rainbow Six can hold onto its top spot or whether other titles will strike back by the end of December.