Honkai Impact 3rd x Evangelion: A Fusion of Mecha and Apocalypse

In January 2021, Honkai Impact 3rd officially launched a major collaboration with the legendary anime Neon Genesis Evangelion. This crossover introduced Asuka Langley Soryu as a playable character, complete with her iconic Spear of Longinus weapon and a special outfit.

The event featured exclusive story missions with strong mecha vibes and invasions from creatures resembling Angels, syncing perfectly with Honkai’s core themes of destruction and advanced technology. Asuka wasn’t just a cameo—she had solid gameplay mechanics and impressively detailed animations, reflecting how seriously the collaboration was developed.

The crossover received positive feedback from players, praised for successfully blending two worlds built around apocalyptic futures and futuristic warfare. Many fans have since hoped for sequels or similar collaborations in the future.

Genshin Impact x Horizon Zero Dawn: Aloy Explores Teyvat

The Genshin Impact collaboration with Horizon Zero Dawn was officially announced in mid-2021, bringing Aloy, the main protagonist from Guerrilla Games’ franchise, into Teyvat as a free 5-star character.

Aloy was initially available for PlayStation players before launching across all platforms. She arrived with the Cryoelement and used a bow, accompanied by exclusive voice lines and items that emphasized her identity as a machine hunter from another world.

While the reception wasn’t as overwhelming as that of Genshin’s original characters, this collaboration marked an important step for Genshin in opening its universe to cross-franchise content outside HoYoverse. Many welcomed the initiative, but also expressed hopes for deeper integration in future collabs—like dedicated story quests or interactions with existing Teyvat characters.

Honkai: Star Rail x Fate/stay night [Unlimited Blade Works]: A Meeting of Two Realms

In 2025, Honkai: Star Rail surprised players with an unexpected collaboration with the iconic anime IP Fate/stay night, particularly the Unlimited Blade Works arc. This crossover introduced Archer (MIYA) as a guest character in a limited-time event, featuring special cutscenes showcasing his signature weapon-summoning abilities and combat style.

The event also added background lore, where Archer is temporarily pulled into the Star Rail universe due to a space-time distortion. With a visual redesign that seamlessly fits Honkai’s aesthetic, Archer’s presence felt natural and enriched the overall narrative of the game.

This collaboration was widely praised by fans of both franchises and demonstrated HoYoverse’s strength in integrating external characters into their game worlds without sacrificing narrative cohesion or immersion.

Conclusion

These three crossovers demonstrate HoYoverse’s ability to deliver inter-IP collaborations that are not only visually appealing but also add narrative and gameplay depth. With high production value and a massive global player base, it’s no surprise that even more ambitious collaborations are likely to happen across HoYo's gaming universes in the future.