Press kit

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Austrian studio brings World Tree Defender to gamescom asia x Thailand Game Show

The tower defense where you build the road, playable at the Austrian pavilion in Bangkok, 29 October to 1 November

VIENNA, 21 OCTOBER 2026. ISC-Avalanche, a small game studio from Vienna led by Lukas Plazovnik, will show World Tree Defender at gamescom asia x Thailand Game Show in Bangkok from 29 October to 1 November 2026. Visitors and press can play the current build at the Austrian pavilion, booth 3, in the B2B area.

World Tree Defender is a mazing tower defense in which players build the road. Every tower is a tetromino-style piece made of several hexagons: rotate it, drop it on the grid, and the enemy swarm has to walk around it. Players wind the path into a labyrinth that bends in real time, defending the World Tree, a young seedling with a big legacy and even bigger nerves, across three biomes: the volcanic Cinderheart, the forest Verdant Veil and the swamp Miremaw.

Key features:

• Hex tower pieces that reshape the enemy path live. There is no fixed lane.
• Towers that transform: Sniper, Flamethrower, Spark Pylon, Gravity Well, Earthshatter and more
• Online co-op on one shared maze, with pooled credits and stackable waves
• A corruption ladder that teaches enemies new skills, plus a level editor with Steam Workshop

"Tower defense usually hands you the path and asks where to put the guns. I wanted the opposite: the path is the puzzle, and every tower you place rewrites it. Bangkok is the first time Southeast Asian players get their hands on it, and I can't wait to see what mazes they build." says Lukas Plazovnik, founder of ISC-Avalanche.

World Tree Defender is planned for release on Steam for Windows PC in Q2 2027 and can be wishlisted now. The game is localised into ten languages, including Simplified Chinese, Japanese and Korean.

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Notes to editors
Title: World Tree Defender
Genre: Tower defense / strategy
Platform: PC (Windows), Steam
Modes: Single-player, online co-op
Developer / publisher: ISC-Avalanche (Vienna, Austria)
Release: Q2 2027
At the show: Austrian pavilion, booth 3, B2B area
Press kit: world-tree-defender.at/press
Steam: store.steampowered.com/app/3870720

About ISC-Avalanche
ISC-Avalanche is a small independent game studio in Vienna, Austria, founded in 2024 by Lukas Plazovnik. World Tree Defender is its first title, built in Unity 6 with a small group of freelance artists and audio specialists.

Press contact: Lukas Plazovnik, catalyze@isc-avalanche.at
Web: world-tree-defender.at · Discord: discord.gg/UFYfQ6ZmEs

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A mazing tower defense where every tower is a hex piece that bends the enemy's path.

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A mazing tower defense. Every tower is a tetromino-style hex piece that bends the path: rotate it, drop it on the grid, wind the swarm into a labyrinth and keep the World Tree alive. A campaign across biomes with ancient guardians, solo or with friends.

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World Tree Defender is a tower defense where you build the road. The swarm walks whatever route you leave open, so the map is yours to shape: one tower at a time, on your own or with friends.

The battlefield is a hex grid and every tower comes as a tetromino-style piece made of several hexagons joined together. Rotate it, drop it, and the enemy column has to walk around it. Wind the path into a labyrinth, make them march past every gun you own, and watch the route bend in real time as you build.

Start with a Turret, then turn it into what the wave needs: Sniper, Flamethrower, Spark Pylon, Ice Ring, Flower Tower, Frost Pillar, Gravity Well, Earthshatter and more. Each one answers a different threat, and the strongest grow into a specialisation of their own.

Bring back ancient powers from every battle and use them to strengthen your towers. You will need them: with each level of corruption the enemies get stronger and learn new skills. Mantises that sprint. Larvae that split. Bugs that grow armour. And Primes that empower the entire wave.

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夢の迷宮を作れるタワーディフェンス。六角形のテトロミノ型タワーが、ピースとなって経路を形作る。タワーを回転させてグリッドに配置し、曲がりくねった迷宮を完成させて敵の大群から「世界樹」を守れ。古代のガーディアンたちが守るバイオームを巡るキャンペーンは、ソロまたは協力プレイが可能。

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迷宫塔防，越玩越着迷。每座塔都是一块俄罗斯方块般的六角拼块，一落地就让路线拐弯：旋转、放上网格，把虫群绕进九曲迷宫，守住世界树。征战多个生态区，远古守护者为你助阵，单人或与好友联机皆可。

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เกมทาวเวอร์ดีเฟนส์สไตล์เขาวงกตอันน่าทึ่ง หอคอยทุกแห่งมีรูปร่างเฉพาะตัว ประกอบขึ้นจากชิ้นส่วนหกเหลี่ยมและเปลี่ยนเส้นทางการบุกของศัตรูได้ หมุนหอคอย วางลงในช่อง พาฝูงศัตรูหลงวนเวียนในเขาวงกต และปกป้องต้นไม้โลกให้ปลอดภัย ทำศึกในไบโอมต่างๆ ร่วมกับเหล่าผู้พิทักษ์โบราณ จะเล่นคนเดียวหรือสนุกกับเพื่อนก็ได้

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ISC-Avalanche is a small game studio in Vienna, Austria, founded in 2024 by Lukas Plazovnik. The team builds World Tree Defender in Unity 6 with a data-oriented (DOTS/ECS) architecture that lets hundreds of enemies re-route through a player-built maze at once.

Design, programming and production are done in-house; art, music and sound come from a small group of freelancers. A four-person QA crew of long-time tower defense players tests every build.