- Stop The Tsunami all waves: Each wave increases water volume, speed, and debris, requiring layered defenses
- Early waves: Focus on cheap barriers and quick income, not heavy fortification
- Mid-game waves: Overtopping begins; reinforce foundations and upgrade drainage
- Late waves: Multiple surge pulses arrive back-to-back; layered defenses and emergency repairs are essential
- Key rule: Survive by slowing and redirecting water, never by relying on one wall
How the Wave System Works in Stop The Tsunami
Stop The Tsunami is built around a wave-based survival loop. Each wave spawns a surge of water that travels toward your defensive line, and every wave changes three core variables: water volume, flow speed, and debris impact. Understanding how these variables scale is the foundation of every successful run.
The core mechanics follow consistent rules:
- Wave scaling: Each wave roughly increases water volume and pressure over the previous one
- Overtopping: Once water rises above a barrier's height, it flows over the top and attacks from behind
- Scour damage: Flowing water erodes the soil under foundations, weakening structures over time
- Debris strikes: Later waves carry debris that deals impact damage to walls and gates
- Multi-pulse surges: Advanced waves arrive in multiple pulses, testing your repair speed between hits
A wall that survives wave one untouched can collapse entirely on wave three if water gets behind it and scours the foundation. Always assume the next wave will overtop your current wall height.
Wave-by-Wave Breakdown
Below is the general wave progression pattern. Exact timings can vary slightly between map layouts, but the difficulty curve and threat identity of each wave stay consistent.
Early Waves (1-3)
| Wave | Water Volume | Speed | Main Threat | Best Response |
|---|---|---|---|---|
| 1 | Low | Slow | Minor splash damage | Cheap starter barriers, save currency |
| 2 | Low-Medium | Slow | First minor overtopping | Add 1-2 blocks of wall height |
| 3 | Medium | Moderate | First debris hits | Reinforce front wall, add drainage |
Early waves are your economy phase. Do not over-invest in a single mega-wall. Spread cheap barriers, generate income, and keep repair tools ready. The goal is to enter the mid-game with surplus resources, not a perfect wall.
Mid Waves (4-6)
| Wave | Water Volume | Speed | Main Threat | Best Response |
|---|---|---|---|---|
| 4 | Medium-High | Moderate | Sustained overtopping | Secondary wall line behind the first |
| 5 | High | Fast | Foundation scour | Deepen foundations, add floodgates |
| 6 | High | Fast | Heavy debris impacts | Impact-resistant segments, angled deflectors |
Mid waves punish single-layer defenses. The most reliable structure is a staggered wall system: a front wall that absorbs the initial impact and slows the surge, followed by a taller back wall that catches the reduced flow. This layered approach keeps damage spread across multiple structures instead of concentrating it on one failure point.
Angle your front barriers slightly rather than building them perfectly flat against the water. Deflected water loses speed and spreads sideways, dramatically reducing direct pressure on your main wall.
Late Waves (7-10)
| Wave | Water Volume | Speed | Main Threat | Best Response |
|---|---|---|---|---|
| 7 | Very High | Fast | First multi-pulse surge | Repair crews positioned between pulses |
| 8 | Very High | Very Fast | Combined scour + debris | Sacrificial outer wall, fortified core |
| 9 | Extreme | Very Fast | Near-total overtopping | Vertical elevation, redirect channels |
| 10 | Extreme | Maximum | Everything at once | Full layered system plus active repairs |
Late waves are where runs end. Water will overtop almost any reasonable wall, so the strategy shifts from blocking to managing the water. Successful players build redirect channels that guide overflow into low-damage zones, elevate critical structures above the flood line, and keep repair teams moving between pulse intervals.
Defense Strategies by Playstyle
Fortress Build
- Massive double walls
- Excellent vs late overtopping
- Weak early economy
- Best for patient players
Economy Build
- Fast income scaling
- Rapid mid-game upgrades
- Vulnerable if wave 4 arrives early
- Best for experienced players
Redirect Build
- Channels and deflectors
- Minimal wall investment
- Strong vs debris-heavy waves
- Requires map knowledge
No single build clears every wave comfortably. The strongest runs blend elements: a compact economy opening into a layered fortress with redirect channels for the final waves.
Step-by-Step Wave Survival Plan
Economy Opening (Waves 1-2)
Build the cheapest viable barrier line and prioritize income generation. Bank resources for the wave 3 debris phase instead of upgrading wall height early.
First Reinforcement (Wave 3)
Add height to your front wall and reinforce its foundation. Debris impacts begin here, so repair speed matters for the first time.
Layered Defense (Waves 4-5)
Construct a secondary wall behind the front line and install floodgates. Assume the front wall will be overtopped and design so the back wall catches the reduced flow.
Impact Hardening (Wave 6)
Upgrade front-facing segments to impact-resistant materials and add angled deflectors to reduce debris strikes.
Flood Management (Waves 7-10)
Build redirect channels, elevate critical structures, and station rapid repair between surge pulses. Survival depends on active management, not passive walls.
If you reach wave 7 with at least two intact wall layers, banked repair resources, and a functional drainage route, you are positioned well for the final waves.
Common Failure Points and Fixes
| Failure | Typical Wave | Cause | Fix |
|---|---|---|---|
| Front wall collapse | 4-5 | Overtopping then scour | Raise back wall, deepen foundation |
| Sudden breach | 6 | Debris breaking one segment | Impact-resistant materials, deflectors |
| Overwhelmed back line | 7-8 | Multi-pulse damage stacking | Fast repairs between pulses |
| Total flood | 9-10 | No redirect routes | Channels + elevated structures |
The single most common run-ender is investing everything into one tall wall. When it fails, nothing behind it survives. Always build a second layer before upgrading the first to maximum height.
Before Every Wave:
- Check front wall height vs expected surge level
- Confirm foundation integrity on all segments
- Stock repair resources for mid-wave patching
- Verify drainage or redirect routes are clear
- Position repair access behind the second wall
FAQ
Q: What are all the waves in Stop The Tsunami?
The wave set spans roughly ten escalating surges. Waves 1-3 are low-volume economy phases, waves 4-6 introduce overtopping, scour, and debris, and waves 7-10 feature multi-pulse surges with near-total overtopping that demand layered defenses and active repairs.
Q: Which wave is the hardest?
Wave 8 is widely considered the run-ender because it combines maximum-speed water, heavy debris, and foundation scour at the same time. Wave 10 is bigger, but by then a properly layered defense has the tools to manage it.
Q: Should I build one tall wall or multiple smaller walls?
Multiple layered walls almost always outperform one tall wall. When a single wall is overtopped, everything behind it floods with full force. A staggered system spreads damage across structures and slows the surge at each stage.
Q: How do I stop foundation scour?
Reinforce foundations during the wave 4-5 window, before scour becomes severe. Deepened footings and back-wall placement keep your structures standing even when water flows around or behind the front line.