A collaboration event between the sandbox game TERAVIT, where players build worlds together, and the Japanese-style MMO action RPG Onigiri begins on October 1, 2026 (Thursday).
The collaboration is held as a lead-up event to Onigiri's 13th service anniversary on December 12, 2026 (Saturday). It includes a mini-game world recreating 鬼ヶ島, the setting of Onigiri, and a campaign offering skins of popular Onigiri characters and limited-edition skin parts.
A contest called the "Creators Grand Prix" is also being held at the same time. Its top prize is a combined ¥10,000 worth of "おにぎりコイン" and "リミテッドガチャチケット交換券", both usable in Onigiri.
鬼ヶ島 Arrives in TERAVIT! Find the Yokai だるま and Earn Limited-Edition Skin Parts
A world recreating 鬼ヶ島, the first stage players land on when they start Onigiri, is coming to TERAVIT.
In the collaboration world, players can gather with friends to chat, and can also take on a mini-game in which they recover items stolen by the yokai だるま. Collaboration-exclusive skin parts are awarded depending on the number of items recovered. Players can tour the world together with 静御前 and others to get the stolen items back.
Limited-edition parts are awarded depending on the number of items recovered.
A login bonus exclusive to the world is also available.
Collaboration Skins of Onigiri Characters 義経, ミロク, and 茨木童子 Arrive in TERAVIT
Skins of 義経, ミロク, and 茨木童子, three of the "なかよしキャラクター" (friendly characters) who appear in the main story of Onigiri, are being added to the TERAVIT Market.
Players who purchase each skin during this limited period, which runs until December 3, 2026 (Thursday), also receive a special skin effect themed on that character's face.
Sale Period for Skins with Limited Effects: From the October 1 (Thu), 2026 update until the December 3 (Thu), 2026 update
Buy Jewels to Earn Limited-Edition Onigiri-Themed Skin Parts in TERAVIT
During the campaign period, players who purchase a limited plan of the in-game currency "Jewels" receive limited-edition skin parts themed on Onigiri.
Depending on the purchase plan, the rewards are:
- Skin part "首領だるまヘッド", which lets players become the yokai 首領だるま
- "鬼流忍術 血之書", themed on an equipment item from Onigiri
- Skin effect "鬼斬なかよしバッジ壱", in which the faces of four characters float around the player
Campaign Period: From the October 1 (Thu), 2026 update until the October 29 (Thu), 2026 update
Creators Grand Prix: Make a Game Themed on Onigiri and Aim for Prizes
The "Creators Grand Prix," a game-creation contest themed on Onigiri, is being held in TERAVIT.
Entrants building their worlds can use four skins: the newly released 義経, ミロク, and 茨木童子, plus 静御前, which has been sold in the Market until now.
Details on how to enter are available on the official site. Entrants are encouraged to bring in elements unique to Onigiri and shape a world of their own.
Entry Period: From the October 1 (Thu), 2026 update until the December 3 (Thu), 2026 update
Collaboration NPC Appears in Onigiri
Onigiri will hold its anniversary event "鬼斬13周年感謝祭" starting November 12 (Thursday), 2026, and a collaboration NPC also appears in the game to coincide with the collaboration.
The collaboration NPC appears for a limited time in 鬼ヶ島, the same setting recreated in TERAVIT.
Be sure to try Onigiri as well.
About Onigiri
Onigiri is a Japanese-style MMO action RPG that has been in service since 2013.
Offered as a Japanese-style MMORPG for 12 years, it has been available on platforms including PC, PS4, and Steam, and is played by people in many countries, centered on Japan.
Set in the chaotic land of "Japan," players use a variety of weapons and travel the world and fight together in a party of four players plus up to four NPCs. The controls are simple, and the action is fast-paced.
Service Overview
Title: Onigiri
Genre: MMO action RPG
Platforms: PC / PlayStation 4 / PC (Steam)
Price: Free (with item sales)
Official website: https://onigiri.cyberstep.jp/
Official Twitter: https://twitter.com/JP_onigiri
About TERAVIT
TERAVIT is a free-to-play sandbox game that everyone builds together.
Beyond letting players assemble a variety of blocks to build their own original voxel worlds, it also offers the experience of becoming a game creator by adding gameplay elements to those worlds.
Service Overview
Title: TERAVIT
Genre: A sandbox game built together with others (multiplayer supported)
Price: Free to play (with in-game item sales)
Supported Platforms: Windows 8.1 / 10 / 11, smartphones (iOS / Android), Nintendo Switch, PlayStation 4 / PlayStation 5
Official website: https://teravit.app/
Official X: https://x.com/teravit_jp
©2026 CyberStep, Inc. All Rights Reserved.
