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Final Kastle playtest
by Cappie Studios
Orc hordes march on your castle wave after wave. Man the cannons, call down lightning, freeze the field and fight on the walls, alone or with up to 16 players online, in a third-person castle defense shooter with a living castle to explore.
Anyone with a Steam account can join, and it's free.
- Access
- Instant
- On playtest since
- Nov 14, 2026
- Planned release
- Dec 2026
- Developer
- Cappie Studios
- Platforms
- Windows
- Players
- Co-op, Cross-platform, Multiplayer, Online co-op, Single-player
- Languages
- English
How to join the Final Kastle playtest
- Open the game's Steam page with the Join playtest button. Sign in to Steam if it asks.
- Use the Final Kastle playtest signup there. You're in straight away, with nothing to pay.
- The playtest shows up in your Steam library, ready to install and play.
New to playtests? How Steam playtests work
How AI is used
AI tools were used during development to help write some in-game text (such as villager dialogue) and this store page, and to make some art: several HUD icons, wave badges and menu pictures, plus touch-ups on other assets. Everything was reviewed and edited by the developer. No AI content is generated while you play.
The developer's own words, from Steam.
About Final Kastle
Final Kastle is a third-person castle defense shooter. Orc armies march on your walls wave after wave, and you hold them back with turrets, guns, grenades, traps and the people of the castle. Defend it alone, or open your castle to up to 16 players online.
Defend the walls
- Attackers come from one to four sides. The host chooses how many before the siege.
- Every fifth wave an Orc Chieftain leads the charge. His ground smash shakes every wall, and from wave 10 he calls lightning circles you must step out of.
- Every eighth wave is a flying raid of fast bats that you have to shoot down yourself.
- Face forest archers, leapers, shield bearers whose dome blocks your shots, bomb runners, ogres and, deep into the siege, stone elementals that hurl boulders at the walls.
- Repair the walls between waves, and keep your turrets standing.
Four turrets
- Castle cannon: arcing cannonballs that splash where they land.
- Dragonfire launcher: pick a circle on the field and set it ablaze.
- Storm hammer: charge a blast of lightning that chains through up to five enemies.
- Winter cannon: frozen shots that leave slick ice, so enemies slip, slide and freeze.
Fight on foot
- Rifles, a sniper, grenades and a hook shot that pulls you up onto the walls.
- Climb ledges, raise your shield and revive fallen teammates.
- Earn perks and elemental runes as the siege goes on, and spend Crowns on upgrades that stay with you.
A living castle
- The castle’s gunners take the turrets beside you, run to their posts when a wave begins and walk home after it.
- Talk to the villagers in confident, plain or rude words. They remember how you treat them.
- Take daily bounties, follow clues, craft at the workshop stations, eat in the castle kitchen and decorate.
- Ride the camel dog, look through the observatory telescopes, play chess in the library, and try your luck at the slot machines and blackjack tables with Crowns earned in battle.
- Day turns to night under a changing moon, with rain, thunderstorms and snow.
Play together
- PLAY: up to 16 players in one castle. Bots hold every empty place, and a player who joins takes a bot’s place.
- MY KASTLE: host your own castle, for friends only or for everyone.
- Your Steam name and Steam friends who play show up in Social, and you can play with PC and phone players.
- PLAY OFFLINE: defend the castle with the castle’s gunners at your side. No internet connection needed.
16 heroes
Unlock 16 heroes with pieces taken from the horde, two are free from the start, and dress them in the wardrobe with colours and armour accents.
Mouse and keyboard or controller
Play with mouse and keyboard or a controller, and rebind the controls to suit you.
No ads and no microtransactions. Crowns are earned only by playing.
From the game's Steam page.
