关于此试用版

This is the free demo — no purchase required.

Welcome to Fragile Frontier, a physics-based co-op delivery game where you're an owl postal worker and packages really don't want to stay on your truck roof.

This demo contains the full Act 1 of The Volcano Post story campaign, plus unlimited side quest content after you finish. Your Feathers, upgrades, and progress carry over to the full game automatically — you won't lose a thing.

The Core Gameplay Loop

Your cargo stacks on the roof of your truck. Drive over a bump too hard and packages scatter across the road. Hop out, grab them, reattach — or just drive over them to auto-reattach.

• E — Pick up a package (carries above your head)
  
• E near your truck — Reattach it to the roof
  
• Drive over loose packages — Auto-reattach instantly
  
• BACKSPACE — Respawn at your last checkpoint if things go very wrong

No hard failure — just gather your packages and keep going. The only question is how chaotic the route gets.

What's in Act 1: Arrival

You play as Pip Feathermail, a postal worker who has just brought the first automobile to Moonperch Island. The locals have never seen anything like it.

• Learn the ropes at the Dock with a guided tutorial
  
• Meet Mayor Hootsworth and the owl community for the first time
  
• Install mailboxes at 6 owl homes across the island
  
• Complete your first official delivery run
  
• Discover the cliffhanger that kicks off the rest of The Volcano Post

Act 1 takes 30-45 minutes on a first playthrough, with full 1-4 player co-op throughout.

After Act 1: Side Quests Unlock

Finish the story content and Moonperch Island stays open for as long as you like. Unlimited delivery side quests spawn at the dock:

• Take repeatable delivery contracts between villager homes
  
• Earn Feathers currency from every completed delivery
  
• Spend Feathers on truck upgrades at Chester's Workshop
  
• Explore the full island at your own pace — no time limit, no pressure

Your Progress Carries Over

When you purchase the full game, your demo save transfers automatically:

• Keep all your earned Feathers — every delivery counts
  
• Keep all truck upgrades you've already unlocked
  
• Continue directly into Act 2 with your upgraded truck
  
• No replaying content you've already completed

Fly Like an Owl

• Triple Jump: Jump three times to activate glide mode
  
• Glide Mode: Spread your wings and soar — W/S to dive or pull up, SPACE to flare and land
  
• Scout routes ahead, cross wide gaps, or recover cargo mid-air

Play With Up to 3 Friends

The demo supports 1-4 players online and local co-op. Each player drives their own truck and manages their own package stack.

• Help each other recover scattered cargo
  
• Push overturned trucks back upright
  
• Glide ahead to scout the route while others catch up
  
• Drop-in/Drop-out: Friends can join mid-delivery without missing a beat

What's in the Full Game

The full Fragile Frontier continues with 4 more acts of The Volcano Post — and Moonperch Island is about to get a lot more dangerous.

• Acts 2-5: Discovery, Preparation, and two acts we'd rather not spoil
  
• The Volcano Awakens: Flaming boulders, lava geysers, crumbling roads, pyroclastic debris
  
• Dynamic environmental hazards that escalate with every act
  
• Higher-tier truck upgrades and a full owl cosmetics collection
  
• Steam Achievements, Cloud Saves, and Rich Presence
  
• 4-6 hours of story content in the full campaign

Like what you see? Wishlist the full game!

Add Fragile Frontier to your Steam Wishlist to be notified the moment it launches. Your demo progress is waiting right where you left it.

Demo Features

• Physics-based delivery chaos — packages scatter on every hard impact
  
• Full Act 1 story campaign (30-45 minutes) with cliffhanger ending
  
• Unlimited side quest deliveries after Act 1 completes
  
• 1-4 player online and local co-op
  
• Triple-jump glide as your owl character
  
• Ragdoll physics on high-speed impacts
  
• Truck upgrade progression (all progress carries to full game)
  
• Hand-crafted Moonperch Island with 7 terrain zones
  
• 7 unique owl NPC characters
  
• Checkpoint system with manual respawn
  
• Full controller support
  
• Family-friendly physics fun

Download now. Deliver hope. Keep the packages on the roof.

AI 生成内容披露

开发者对其游戏如何使用 AI 生成内容的描述如下：

Fragile Frontier is made by Lost Rabbit Digital: two siblings who handle all the coding, music, writing, and playtesting ourselves, with help from one additional artist, and one musician. We're a tiny team with no outside funding. To keep up, we sometimes use AI tools to brainstorm or generate rough drafts. But nothing ships without our hands on it. Every line of code, every sprite, every track is reviewed, rewritten, and refined by us.