Laiyipao — A Browser-Based Turn-Based Projectile Duel

What is Laiyipao

Laiyipao is a turn-based projectile duel game you can play right in your browser — no install, no signup. Aim, charge your shot, account for wind and gravity, and try to blow your opponent off the map.

If you grew up playing Worms, Gunbound, or the classic Chinese game Dandantang (弹弹堂), this will feel instantly familiar. The whole game lives at:

👉 laiyipao.xiajuan.app

Core Gameplay

Each match is turn-based: players take turns aiming and firing. On your turn you have three knobs:

• Angle — where you’re pointing
• Power — how hard you’re firing (charge it up by holding the fire key)
• Timing — the wind and the map don’t wait for you

A shot hits, kicks up a damage zone, and may break terrain or blocks. Drop someone’s HP to zero and they’re out. Last player standing wins.

Physics That Matter

This isn’t just a static target shooter. Every shot is shaped by:

• Wind — direction and strength change between turns, shown by an arrow at the top. A strong tailwind can carry your shot way further than expected
• Gravity — projectiles arc, so you’re solving “where will it land” not “where is it pointed”
• Destructible terrain — the ground itself gets eaten away. After a few rounds the map looks nothing like it started
• Destructible blocks — extra blocks placed on the map take HP-based damage and visibly crack before they shatter

The result is that the same opening shot rarely works twice — you have to read the wind and adapt.

The Charging Mechanic

Power isn’t a slider you click — you hold and release:

• Hold Space to charge the shot, power climbs smoothly
• Release Space to fire at the current power

Charge curve, max power, and resistance are all tunable in-game via sliders. The settings persist to localStorage, so you can find a feel that suits you and keep it.

It sounds small, but it’s the difference between “press button to shoot” and “I had to physically commit to that shot.” That tactile feedback is the whole point.

Modes

There are five modes, covering practice, tuning, and real matchmaking:

The two online modes share a global matchmaking pool, so as long as someone else is queuing for the same size match, you’ll be paired up in seconds.

Custom-Recorded Sounds

This is the part I personally love.

You can record your own voice as the launch sound and the impact sound. The game uses your browser’s MediaRecorder to capture audio, validates it, and saves it locally. Then every time you fire or hit, it plays your voice.

I’ve heard people record:

• An exhale + “啊!” as the launch sound
• A muttered “boom” as the impact
• Their cat
• Cursed mouth-noises that should not exist

In online matches, your custom sounds are also sent to your opponents (sanitized server-side), so they hear your voice when you shoot at them. Friendly trash-talk has never been more direct.

How to Start

There’s nothing to install. Just open the link, pick a mode, and you’re in:

laiyipao.xiajuan.app

• For practice modes: pick “Practice” or “Tuning” — you’ll be in the arena instantly with a bot
• For online: pick “1v1 Online” or “3-Player Online” — you’ll go into matchmaking. Most pairings happen in a few seconds during peak hours
• Set your name and avatar from the menu so opponents know who they’re playing
• Record your sound effects from the menu before queuing for online — that way other players hear them in the very first match

Keyboard: ↑ / ↓ rotate aim, Space fires (hold to charge).

Why I Built This

Honestly, because I wanted to play it. The original Dandantang from my teenage years is gone, the modern mobile clones are full of ads and gacha, and I wanted something that:

• Opens in 1 second
• Has zero accounts, zero ads
• Plays with friends just by sharing a link
• Lets me record dumb sounds with my friends and hear them in-game

Six weeks later, here it is. The whole stack is React + TypeScript on the client, plain Express in dev, and Cloudflare Workers + Durable Objects in production, so matchmaking and game state run at the edge with very low latency anywhere in the world.

If you give it a try, I’d love to hear what you think — especially what’s missing or what feels off. The fastest way to ruin a game is to ignore that feedback.