| Aspect | Rating (1–10) | Comment | |--------|---------------|---------| | Ease of making a basic mod | 6 | Requires Java + TeaVM setup | | Power compared to Java cheats | 4 | No ghost clients, limited reach, no reflection | | Stability | 5 | Crashes more often than Java; GC pauses | | Stealth / bypass ability | 2 | Trivial for server to detect if they try | | Safety of downloading random clients | 1 | Extremely risky |

Standard Eaglercraft works because it uses WebSocket (wss://) traffic, which looks identical to normal HTTPS web traffic. Modded clients take this further.

And always scan your downloads with VirusTotal before running any .html file from an untrusted source.

Textures, sounds, and language files are stored as Base64-encoded data or loaded via URLs. Modders can:

| Feature | Possible? | Notes | |--------|-----------|-------| | Xray (see through stone) | ✅ Yes | Modify block rendering or override shouldSideBeRendered | | Fly / speed | ✅ Yes | Modify player position before packet send or override onUpdateWalkingPlayer | | Killaura (auto-attack) | ✅ Yes | Loop through entities, send attack packets | | Nuker (instant break) | ✅ Yes | Send multiple dig packets per tick | | Fastplace | ✅ Yes | Bypass item cooldown check in client | | Name tags / ESP | ✅ Yes | Override render distance / entity rendering | | | ✅ Yes | Unlock movement while in GUI | | Block reach | ⚠️ Limited | Reach is partly server-side; client can spoof raycast but server may reject | | NoFall | ⚠️ Partial | Server may still calculate fall damage | | Scaffold walk | ✅ Yes | Simulate right-click placement under feet | | Bypass anticheat | ❌ Rare | Most Eaglercraft servers have no anticheat; but those with simple checks (velocity, packet rate) can detect mods |

Modded clients inject code at runtime. Poorly written hacks cause memory leaks, forcing you to refresh the page every 10 minutes.