After Fifteen
The timer adds a layer of difficulty to progression - when it runs out, radiation will cover the entire surface for a long time, disrupting any surface-level development.
Screenshots
About this Mod
AfterFifteen - Nuclear Apocalypse Survival
AfterFifteen is a hardcore survival mod that adds a personalized radiation system for each player. Every player has their own timer, their own radiation level, and their own consequences.
🌍 The Cycle
The mod works in a three-phase cycle for each player independently:
⏰ Phase 1: PROTECTION (Default: 15 minutes)
After first join, you have 15 minutes to prepare. Gather resources, build a shelter, or dig deep. The countdown has begun...
☢️ Phase 2: RADIATION (Dimension dependent)
- Overworld: 7 days
- Nether: 21 days
- End: 28 days
During this phase, the surface is contaminated! You'll accumulate radiation based on your height:
- Above 64 blocks: ×2.0 radiation (MOST DANGEROUS)
- 51-64 blocks: ×1.5 radiation (DANGEROUS)
- Below 50 blocks: SAFE ZONE (no radiation)
⏳ Phase 3: IDLE
After radiation ends, you enter an idle phase. No timers, no radiation - just hallucinations from what you've experienced...
🩻 Radiation Sickness (10 stages)
As your radiation level increases, you'll experience worsening effects:
| Stage | Radiation | Effects |
|---|---|---|
| 1 | 5-14% | Nausea, Weakness I |
| 2 | 15-24% | Weakness II, Hunger I |
| 3 | 25-34% | Slowness I, Hunger II |
| 4 | 35-44% | Mining Fatigue I, Slowness II |
| 5 | 45-54% | Blindness, 1.0❤️ damage |
| 6 | 55-64% | Poison I, 1.5❤️ damage |
| 7 | 65-74% | Unluck, 2.0❤️ damage |
| 8 | 75-84% | Wither I, 2.5❤️ damage |
| 9 | 85-94% | Darkness, 3.0❤️ damage |
| 10 | 95%+ | DEATH APPROACHING! 4.0❤️ damage |
👻 Hallucinations
When radiation drops to zero, you'll experience 2 hours of hallucinations:
- Fake mob sounds (zombies, skeletons, creepers)
- Herobrine sightings
- Explosion sounds
- Item pickup/drop sounds
- Chat messages from "unknown players"
- Random slot swapping
- And much more...
🎮 Commands
(Global command - in development, use {Nickname})
Player Commands (/af)
/af status [player]- Check your (or another player's) radiation status- Shows current phase
- Time remaining
- Accumulation rate per second
- Current location
Admin Commands (/afc)
Global Settings
/afc set protected global <time>- Set default protection time/afc set radiation global <time>- Set default radiation time for all dimensions/afc set multiplier accumulation global <value>- Set global accumulation rate/afc set multiplier decay global <value>- Set global decay rate/afc set dimension overworld/nether/end <time>- Set radiation time per dimension
Player-specific Settings
/afc set protected <player> <time>- Set protection time for specific player/afc set radiation <player> <time>- Set radiation time for specific player/afc set multiplier accumulation <player> <value>- Personal accumulation multiplier/afc set multiplier decay <player> <value>- Personal decay multiplier
Information Commands
/afc get protected [global/player]- Get protection time/afc get radiation [global/player]- Get radiation time/afc get multiplier accumulation [global/player]- Get accumulation multiplier/afc get multiplier decay [global/player]- Get decay multiplier/afc get dimension overworld/nether/end- Get dimension radiation times
Reset Commands
/afc reset player <player>- Reset player to global defaults/afc reset all- Reset ALL online players
Settings Commands (/afsettings)
/afsettings notifications on/off- Toggle chat notifications/afsettings status- Check your current settings
⚙️ Configuration
All values can be changed in-game via commands or in the config file:
- Protection time
- Radiation time per dimension
- Accumulation/decay multipliers
- Hallucination settings
🌟 Features
✅ Per-player timers - Each player has their own independent cycle
✅ Persistent data - Progress saves when you log out
✅ Multiplier system - Personal and global multipliers
✅ Height-based radiation - Go deep to stay safe!
✅ 10-stage sickness system - Increasingly dangerous effects
✅ Hallucinations - Psychological horror after radiation exposure
✅ Fully localized - English and Russian supported
✅ Admin friendly - Full command control
✅ Lightweight - No performance impact
📥 Installation
- Install Minecraft Forge 1.20.1
- Download the mod
- Place in
.minecraft/modsfolder - Launch the game!
📝 Notes
- Timers only run when you're online
- Data saves when you log out
- You can customize everything via commands
- Safe zone is Y-level 50 and below
- Hallucinations can be disabled in config
📢 Feedback & Suggestions
You can also suggest ideas for future updates on our Discord server
Available Versions
How to Install After Fifteen on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "After Fifteen". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
After Fifteen server crashes on startup – what to do?
Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.1). You can switch loaders with one click in the panel.
Is After Fifteen compatible with forge?
After Fifteen officially supports forge for Minecraft 1.20.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with After Fifteen – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if After Fifteen consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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