Tribulation - Difficulty Overhaul
- By
The world pushes back the longer and farther you survive. Formula-driven mob scaling across time, distance, depth, and moon phase, with tiered gear, hardened raids, and opt-in death penalties. Fully configurable, standalone, multiplayer-fair.
Tribulation — Difficulty Overhaul
Survive what comes next.
Also on Modrinth and GitHub Releases. Visit the website for the full feature list, config reference, and command guide.
Tribulation is a difficulty overhaul for Minecraft 1.21.1 (Fabric). It transforms Minecraft's flat difficulty curve into an escalating gauntlet: the longer you play, the further you explore, and the deeper you dig — the harder the world fights back. Every system is formula-driven, fully configurable, and persists across server restarts.
An overhaul, not a content pack. No custom mobs, no new dimensions — vanilla mobs, vanilla mechanics, sharpened. Zero external dependencies beyond Fabric API.
At a glance
- Minecraft 1.21.1, Fabric loader (0.16.10+), Fabric API required.
- Required on the server; install client-side too for the level badge HUD.
- Every system is individually toggleable through Mod Menu / Cloth Config
or
config/tribulation.json— hot-reload with/tribulation reload. - MIT licensed.
Features
Four-Axis Mob Scaling
Mob stats are computed from four independent factors the moment a mob spawns:
| Axis | How It Works | Cap |
|---|---|---|
| Time | Your cumulative playtime advances a per-player difficulty level (0–250). Higher level = stronger mobs near you. ~1 level per hour of play. | Level 250 |
| Distance | Beyond 1,000 blocks from world spawn, mobs gain bonus health, damage, armor, and toughness. The frontier is dangerous. | +150% |
| Height | Deviation from sea level (Y=62) in either direction adds threat. Deep caves and tall mountains are deadlier. | +50% |
| Moon Phase | On Overworld nights, a triangle curve peaks at the full moon and tapers to zero at the new moon — the same coordinates feel different week to week. | +10% |
All four axes stack. On top of them, a flat per-dimension level offset keeps the Nether (+25) and End (+40) scarier than the late-game Overworld, lifting both mob stats and ability tiers. 21 vanilla mob types have individually tuned scaling rates and caps — zombies don't scale the same as skeletons or creepers. Modded hostile mobs are automatically supported with conservative fallback scaling (configurable per-namespace or per-entity).
In multiplayer, choose which player level drives a nearby mob — the nearest, the average, or the maximum of the players in range.
Tier-Gated Mob Abilities
At 5 level thresholds (50/100/150/200/250), mobs unlock new behaviors that change how you fight them:
- Tier 1 (50) — Zombies call reinforcements, creepers fuse in 0.75s, hoglins shrug off knockback
- Tier 2 (100) — Skeletons trade bows for swords, spiders snare you in webs, drowned carry tridents, piglins pick up crossbows
- Tier 3 (150) — Zombies break doors, spiders trample crops, wither skeletons sprint, zoglins walk through fire
- Tier 4 (200) — Skeleton arrows burn, husks inflict Hunger II, vindicators resist damage, wither skeleton blades gain Fire Aspect
- Tier 5 (250) — Zombies sprint, 25% of creepers spawn charged, spiders leap, zombified piglins aggro from far away
Every individual ability can be toggled in the config.
Tier-Driven Equipment
Mobs spawn with armor and weapons that scale with their tier — leather and gold at low tiers shifting toward iron, diamond, and netherite at the top, with tier-capped Protection/Sharpness/Power enchantments. A clear threat signal before you even engage.
Special Zombie Variants
Zombie-family mobs (Zombie, Husk, Drowned, Zombified Piglin) can roll one of two variants on top of normal scaling:
- Big Zombie (10%) — 1.3× size, +10 health, +2 damage, 0.7× speed. A lumbering tank.
- Speed Zombie (10%) — 1.3× movement speed, −10 health. Closes gaps fast.
Special Skeleton Variants
Skeleton-family mobs (Skeleton, Stray, Bogged) can roll one of two variants on top of normal scaling:
- Deadeye Skeleton (10%) — faster bow draw, −10 health. A glass-cannon archer.
- Brute Skeleton (10%) — +10 health, 0.5 knockback resistance, 1.3× size, slower bow draw. A heavy, hard-to-stagger archer.
Boss Scaling
The Ender Dragon, Wither, Elder Guardian, and anything tagged c:bosses scale
with a separate, gentler formula — health and damage only, capped at +300%. No
sudden one-shots; endgame bosses just stay relevant.
Raid & Patrol Scaling
Vanilla's own escalation system scales with you, driven by the tier of the targeted players — while bells, Hero of the Village, and the raid bar all behave normally.
- Bigger patrols — a pillager patrol captain adds extra members as your tier climbs, each spawned through the normal scaling path with tier-appropriate stats, armor, and weapons.
- Extra raid waves — raids targeting high-tier players run additional waves on top of the vanilla count.
Death Penalty Systems
All penalties are independently toggleable. Mix and match the stakes you want:
- Death Relief — lose 2 levels on death (rubber-band mechanic, cooldown-gated)
- Shatter Shards — rare drops (0.5%) that lower your level by 5, at the cost of 10s of Slowness, Mining Fatigue, and Weakness
- Hardcore Hearts (opt-in) — permanently lose max health per death; restore with craftable Heart Fragments
- Soul Inventory (opt-in) — items are destroyed on death unless they carry the Soulbound enchantment
A popped Totem of Undying can optionally interact with these penalties via
the totems config: have a totem pop still apply the Death Relief level loss
(countsAsDeathRelief), or shield you from the Hardcore Hearts loss
(protectsHearts).
Rewards Scale Too
- Bonus XP — scaled mobs drop up to 2× base XP, proportional to their scaling factor
- Extra loot (opt-in) — a chance to duplicate a drop, scaling with mob difficulty
Level Badge HUD
A compact, icon-only badge shows your current tier at a glance — tinted white through yellow, orange, and red to dark crimson across tiers, with a thin progress bar toward your next level. Flashes gold on level-up. Anchor to any screen corner; stacks cleanly with HUDs from the other Concord suite mods.
Difficulty Statistics
Six custom statistics track your difficulty milestones — highest level reached, levels lost to death relief, Shatter Shards used, half-hearts lost, half-hearts restored, and Tier-5 mobs killed. They live alongside vanilla's counters in the Statistics → Custom screen, so progress persists across sessions.
Commands
Player commands: /tribulation info, /tribulation hearts. Operator
commands cover level set/reset, hot-reload, and the debug/inspect
scaling-breakdown tools. Full reference:
tribulation.rfizzle.com/commands.html
Optional integrations
Tribulation detects and integrates with these mods when present. None are bundled — install whichever you already use.
- Mod Menu — config screen entry
- Cloth Config — settings GUI
- Jade / WTHIT — mob scaling tooltip overlays
- EMI / REI / JEI — Shatter Shard and Heart Fragment recipes
For mod developers: a stable, read-only API
(com.rfizzle.tribulation.api) exposes player level/tier, mob scaling
state, and a level-change event — see the
developer docs.
Requirements
- Minecraft 1.21.1
- Fabric Loader 0.16.10+
- Fabric API
- Java 21+
- Works on dedicated servers and singleplayer
Installation
- Install Fabric Loader for 1.21.1.
- Drop Fabric API into your
mods/folder. - Download Tribulation and place it into
mods/as well — on both server and client. - (Optional) Add Mod Menu and Cloth Config for the in-game settings screen.
Config generates at config/tribulation.json on first launch.
Links
- Website: https://tribulation.rfizzle.com
- GitHub Releases (canonical downloads): https://github.com/rfizzle/tribulation/releases
- Modrinth: https://modrinth.com/mod/tribulation-difficulty-overhaul
- GitHub: https://github.com/rfizzle/tribulation
- Report an issue: https://github.com/rfizzle/tribulation/issues
- Changelog: https://tribulation.rfizzle.com/changelog.html
Companion mods
Tribulation is part of Concord — a modular collection of system overhauls. Install any, combine all:
- Meridian — Chart your enchantments.
- Mercantile — Every villager remembers.
- Prosperity — Every chest, yours to discover.
License & credits
Licensed under the MIT License. © 2025-2026 rfizzle. Tribulation is not affiliated with Mojang Studios or Microsoft.
The Tribulation - Difficulty Overhaul Team
