Tsunami is a Minecraft mod that brings a genuinely new environmental hazard into the game: fully simulated, spreading tsunami waves that can reshape terrain, flood bases, and turn a peaceful world into a survival nightmare. Unlike vanilla water, every tsunami type in this mod behaves as its own custom fluid, with unique physics, visuals, and interactions. Whether you want a slow-building flood for a build video, a chaotic TNT tsunami for a chaos server, or a creeping toxic tide for a horror map, this mod gives you the tools to do it — with 24 distinct tsunami variants and full server-side control through gamerules.
The mod is built for players who want more than a gimmick. Every fluid has been individually balanced, textured, and tested across survival and creative scenarios, and each one also ships with an invisible variant for mapmakers who want the destructive behavior of a tsunami without the visual footprint — perfect for scripted events, hidden traps, or timed cutscenes in custom maps.
Why Download the Tsunami Mod?
- 24 unique tsunami fluids, each with its own texture, spread pattern, and special effect (burning, freezing, poisoning, exploding, teleporting, and more).
- Invisible copies of every tsunami for clean map design and redstone-triggered disaster sequences.
- Four dedicated gamerules that let server admins fine-tune griefing, spreading, chain reactions, and unsafe/experimental fluids.
- Bucket-based deployment — every tsunami type can be carried, placed, and removed just like vanilla water and lava, so there’s no learning curve.
- Actively maintained with a clear versioning policy and a public suggestion channel for new tsunami types.
Full List of Tsunami Bucket Types
Each bucket below places a full-scale, spreading tsunami of that type. All of them can be picked back up with an empty bucket, just like vanilla fluids.
| # | Bucket Name | What It Does |
|---|---|---|
| 1 | Bucket of Tsunami | The baseline wave — standard spread speed and full destructive flooding. |
| 2 | Bucket of Slow Tsunami | A gentler flood that spreads gradually, ideal for cinematic or slow-burn scenarios. |
| 3 | Bucket of Lava Tsunami | A molten wave that ignites everything flammable in its path. |
| 4 | Bucket of Fast Lava Tsunami | An accelerated lava flood for fast, high-danger encounters. |
| 5 | Bucket of Cold Tsunami | Freezes nearby blocks and entities as it advances. |
| 6 | Bucket of Glowing Tsunami | Lights up dark areas while it floods them — useful above and below ground. |
| 7 | Bucket of Gaseous Tsunami | A vapor-like wave with airy, drifting spread behavior. |
| 8 | Bucket of Toxic Tsunami | Poisons anything caught inside it — great for horror or survival maps. |
| 9 | Bucket of Dark Tsunami | A shadowy flood that reduces visibility as it spreads. |
| 10 | Bucket of Radioactive Tsunami | Deals lingering damage, simulating radioactive contamination. |
| 11 | Bucket of Compressed Tsunami | A dense, high-pressure wave with amplified push force. |
| 12 | Bucket of Hungry Tsunami | Consumes surrounding blocks as it spreads, growing more destructive over time. |
| 13 | Bucket of TNT Tsunami | A wave laced with explosive potential — extremely destructive, use with care. |
| 14 | Bucket of Oil Tsunami | Highly flammable; supports chain-reaction detonation via gamerule. |
| 15 | Bucket of Acid Tsunami | Corrodes and damages blocks and entities on contact. |
| 16 | Bucket of Resin Tsunami | A sticky, slow-moving wave that traps entities caught in it. |
| 17 | Bucket of Airy Tsunami | A lightweight fluid with unusual, floaty spread physics. |
| 18 | Bucket of Ender Tsunami | An End-themed wave with otherworldly visual effects. |
| 19 | Bucket of Slime Tsunami | A bouncy, elastic flood that launches entities on contact. |
| 20 | Bucket of Random Tsunami | Randomly adopts the behavior of another tsunami type each time it’s placed. |
| 21 | Bucket of Strong Tsunami | Boosted push force and spread radius for maximum destruction. |
| 22 | Bucket of Liquid Nitrogen Tsunami | Instantly freezes on contact, far more aggressive than the cold variant. |
| 23 | Bucket of Void Tsunami | Erases blocks it touches rather than replacing them, leaving permanent gaps. |
| 24 | Bucket of Broken Tsunami | An unstable, experimental fluid with unpredictable behavior — gated behind the unsafe-tsunamis gamerule. |
Every entry on this list also has a hidden, invisible counterpart, giving mapmakers 48 total fluid variants to work with.
Gamerule Commands & Server Configuration
From version 1.16.5 onward, the mod exposes four gamerules so server owners and singleplayer hosts can control exactly how destructive their tsunamis are.
/gamerule tsunamiGriefing
When set to true, tsunamis are allowed to break breakable blocks in their path — doors, glass panes, foliage, and similar objects. This produces the most realistic flooding but comes with a noticeable performance cost. Default: false
/gamerule oilTsunamiChainDetonation
When set to true, destroying a block of oil tsunami with an explosion triggers a spreading chain of detonations through the connected oil fluid — perfect for large-scale explosive set pieces. Default: false
/gamerule allowTsunamisSpread
When set to false, every tsunami on the map immediately stops spreading. Flipping it back to true will not automatically resume spread — a stopped tsunami block needs to be updated first (for example, by breaking or placing an adjacent block). This makes it easy to “freeze” a flood mid-event for screenshots or scripted moments. Default: true
/gamerule allowUnsafeTsunamis
When set to true, unsafe tsunami types (such as the Broken Tsunami) become placeable. These variants carry a serious performance cost and can cause irreversible world damage, so this rule is disabled by default and should only be enabled on worlds you’re comfortable losing. Default: false
Performance & Optimization Notes
The mod is well-optimized for Minecraft 1.16.5 and above, but by nature, fluid simulation is one of the heaviest systems a mod can add to the game. Tsunami spread calculations scale exponentially with the number of active tsunami source blocks, so players should keep the following in mind:
- Running many tsunamis simultaneously (10+) will noticeably increase tick time, even on high-end hardware.
- Lowering render distance significantly reduces the visual and simulation load during large flood events.
- The
tsunamiGriefinggamerule roughly doubles the computational cost of each tsunami tick, since block-breaking checks are added to every spread update. - For building and showcase videos, the Slow Tsunami variant offers the same visuals with a much lighter simulation load.
Compatibility
The mod has been tested against the most common modpack setups, but a few notes are worth flagging:
- OptiFine: Using OptiFine alongside this mod frequently causes incorrect fluid color rendering. If your tsunamis look visually wrong, try disabling OptiFine’s custom fluid shaders first.
- Version support: Active support covers 1.16.5 and newer. Versions below 1.16.5 are no longer maintained and are not recommended — they are prone to poor performance and random crashes.
Frequently Asked Questions
Does this mod work in Survival mode?
Yes. All tsunami buckets can be crafted, found, or obtained (depending on your pack setup) and used exactly like vanilla water and lava buckets in Survival.
Can I use this mod on a multiplayer server?
Yes, and the gamerule system is specifically designed for server admins who want to control how aggressive tsunamis are allowed to be, including disabling griefing or unsafe fluids entirely.
Will this mod lag my world?
A handful of tsunamis at once will run smoothly on most setups. Large-scale flooding with 20+ simultaneous tsunamis and high render distance will cause noticeable lag regardless of hardware — this is an inherent cost of realistic fluid simulation, not a bug.
Can I suggest a new tsunami type?
Yes — the mod author actively collects community suggestions for new tsunami variants to include in future updates.
License & Redistribution
This mod is released under an All Rights Reserved license. Redistributing this mod through any source other than the official CurseForge or Modrinth pages is prohibited unless the original author, B_Kirill, is credited and a link back to the original page is included. If you become aware of unauthorized redistribution, please notify the author.
Have an idea for the next tsunami type? Leave a suggestion in the comments below, and check back regularly — this mod is actively updated based on community feedback.