In the fast-paced world of fighting games, development is a constant cycle of testing, learning, and refining. For 2XKO, Riot's upcoming tag-team fighter, this process has been pivotal. From early chaotic dev sessions to structured community summits, each playtest has offered invaluable insights that have shaped the game we'll soon see. Let's dive into some of the most impactful playtests that have left their mark on 2XKO.

The Power of Playtesting

Playtesting is the backbone of game development at Riot. The research team has conducted dozens of scientific playtests with players of all skill levels—from seasoned fighting game veterans to complete newcomers. These sessions cover everything from champion kits and core rules to onboarding experiences and visual updates. But it's not just about first impressions; playtests also help the team understand how players interact with the game over time, revealing patterns that raw data alone can't show.

However, not all feedback is straightforward. Sometimes, player input can be contradictory or challenge the designers' original vision. The team must decide whether to address a symptom or the root cause, and whether a change aligns with their goals. This balancing act becomes even more complex when the game goes live to millions of players worldwide, each with unique playstyles and preferences.

The First Duo Playtest: Pure Chaos, Real Potential

One of the most memorable playtests occurred during the early days of remote work. The team recorded the first-ever dev playtest featuring duo play, and it was absolute pandemonium. High latency, overlapping voice comms, characters lingering on screen too long, and immediate sandwich infinites—everything that could go wrong did. Yet, amidst the chaos, the team saw a glimmer of what duo play could become. That moment of realization sparked further exploration and eventually led to the robust 2v2 mode we see today.

Pre-Evo FGC Check-In: Validating Duo Dynamics

Before their first Evo appearance, Riot hosted a two-day summit at their LA office, inviting members of the fighting game community (FGC) to get hands-on time with 2XKO. The goal was to spark curiosity and gather feedback, especially on duo gameplay. The event was a success, with participants offering valuable insights into the strengths and weaknesses of the 2v2 format.

A mini-tournament on the final day provided some thrilling moments—including a photobombed victory by SonicFox and an hour-long grand finals with improvised commentary from Yipes. That marathon match highlighted a pacing issue that was quickly added to the development to-do list. The summit also validated assumptions about high-skill play, with an even split between solo and duo entrants in an impromptu tournament. One particularly dramatic story unfolded when a duo unintentionally split, only to face each other in the bracket—the new duo emerged victorious, showcasing the unpredictable narratives that make fighting games so exciting.

Beyond Balance: Regional and Cultural Considerations

Playtesting isn't just about game mechanics; it's also about understanding the diverse player base. Riot must consider global players, but some needs are localized. For instance, many Korean 2XKO players rebind their keyboard layouts to mimic MOBA controls—a fascinating adaptation that highlights the importance of flexibility in game design. These insights remind the team that player preferences can vary widely across regions, and accommodating them is key to creating a truly inclusive experience.

What's Next for 2XKO

The journey of playtesting and iteration never stops. With Lux's gameplay reveal on September 3 and her arrival in Patch 1.3.1 on September 8, players will soon have a new champion to experiment with. The competitive scene heats up in October with First Attack and Evo France, followed by Samira's debut in late October. As the team continues to refine the game, they remain grateful for every player who contributes feedback—whether through formal playtests or just by playing the game.

  • Sep 3: Lux gameplay reveal
  • Sep 8: Patch 1.3.1 live (with Lux)
  • Oct 3-4: First Attack (2XKO Challenger event)
  • Oct 9-11: Evo France (2XKO Major event)
  • Late Oct: Patch 1.3.3 live (with Samira)
  • Nov 21-22: Battle Coliseum (2XKO Major event)
  • Nov 27-29: MINDSET 2026 (2XKO Challenger event)

As we look ahead, the development team will continue to listen to player feedback and adapt. Whether it's through formal playtests or community events, every interaction helps shape the future of 2XKO. So, if you've ever played the game, know that your input has made a difference—and the team is deeply thankful for your time and effort.

Source: This article is based on information from Riot Games' official 2XKO news post 'The Playtests that Changed 2XKO' by @draggles.