- Stop The Tsunami new update adds trench digging, wall tools, and heavy machines to the wave-defense loop.
- Core loop: block each wave, earn cash, upgrade tools, face bigger tsunamis.
- Best early play: dig a deep forward trench so water drops before reaching your dam.
- Key unlock: the excavator builds walls far faster than shovels or the bulldozer.
- Late-game strategy: use the dump truck to haul gravel and rocks for reinforced multi-layer walls.
What's New in the Stop The Tsunami Update
The Stop The Tsunami new update expands the game beyond simple sand-pile defenses. The core loop is unchanged — a tsunami spawns, you dig and build before it hits, and you earn money for every wave you stop — but the update adds a much deeper tool progression path and new defensive options that change how you approach each round.
Each successful wave defense pays out cash. Waves arrive in sets (sometimes three at once), and every next wave is bigger than the last. Reinvest your payout into tools immediately — hoarding cash between waves wastes build time.
The major additions break down into three categories:
| Feature | What It Does | Why It Matters |
|---|---|---|
| Trench digging | Removes sand in strips to lower terrain | Water dips into trenches and loses momentum |
| Wall tools | Directly place and shape walls | Faster than pushing sand manually |
| Heavy machines | Excavator, dump truck, cement truck | Scale up defense as waves grow mountain-sized |
Some players report getting stuck mid-dig and having to leave and rejoin the round. If your character freezes, rejoining usually restores movement without losing your wall progress.
Tool Progression: What to Buy First
Your tool order decides how many waves you can survive. Early tools are cheap but slow; the goal is to reach the excavator tier as fast as possible.
| Tool | Cost Tier | Speed | Best Use | Rating |
|---|---|---|---|---|
| Plastic shovel | Starter | Slow | First small dam | ★★ |
| Big shovel | Low | Moderate | Faster digging, wider coverage | ★★★ |
| Sand trencher | Low | Fast | Cutting deep forward trenches | ★★★★ |
| Lifeguard ATV | Low | Fast travel | Moving between dig sites | ★★ |
| Bulldozer | Mid | Moderate | Pushing sand into large drifts | ★★★ |
| Mini excavator | Mid | Fast | Digs and reinforces walls quickly | ★★★★ |
| Large excavator | High | Very fast | Grabbing huge sand loads per swing | ★★★★★ |
| Dump truck | High | Moderate | Hauling gravel and boulders | ★★★★ |
Early Game
- Trencher first: dig a deep trench forward of your dam line
- Use the big shovel to patch thin spots
- Keep walls thick — thin walls get washed over
Mid Game
- Bulldozer pushes sand into big drifts fast
- Mini excavator digs and stacks in one motion
- Start layering: trench, then two or three wall rows
Late Game
- Large excavator is the workhorse — massive sand loads
- Dump truck hauls gravel from the quarry for stabilization
- Gravel spreads thin, so dump piles then flatten them
The sand trencher is the strongest early purchase in the update. Digging a trench on the seaward side makes the wave drop into the pit first, dramatically reducing the height it hits your main wall with. The large excavator later does the same job at triple the speed.
Step-by-Step: Stopping a Mega Wave
When the ocean pulls back and the alarm sounds, a mountain-sized wave is coming. Follow this sequence to survive it.
Read the wave path
Tsunamis usually funnel through a specific section, like the port opening. Focus 80% of your effort there instead of defending the whole coastline evenly.
Cut a forward trench
Use the trencher or excavator to dig a deep channel in front of your wall line. Water that drops into the trench loses height before reaching the dam.
Build thick, not tall
A tall thin wall gets toppled; a wide base holds. Make the wall thicker at the middle section, since that absorbs the direct hit.
Layer your defenses
Build at least two or three wall rows. The first wall takes the crash, the second slows the surge, and the third stops the overflow.
Emergency dig
If water breaches mid-wave, dig straight down wherever it's flooding through. Splitting the flow into a pit can salvage a losing round.
Water consistently crashes over single walls as wave heights climb. The update's smarter water physics means overflow routes around obstacles — always keep a backup wall and a backup trench behind your main line.
Materials: Sand vs. Gravel vs. Rock
The update introduces real construction materials through the quarry area (Workshop Cove). Choosing the right material matters as much as the tool you place it with.
| Material | Source | Strength | Notes |
|---|---|---|---|
| Sand | Free, everywhere | Low | Fast to move but washes out easily |
| Gravel | Quarry via dump truck | Medium | Good stabilization layer over sand |
| Rocks/boulders | Quarry via dump truck | High | Truck only carries four boulders per trip |
| Cement | Cement truck | High | Late-game option once other tools are owned |
Don't try to place gravel precisely from the truck. Dump piles along your wall line, then spread and shape them with the excavator or dozer. You can also reposition dumped material after placing it.
Update Mastery Checklist:
- Buy the sand trencher and cut a forward trench
- Survive a three-wave set with a layered dam
- Unlock the mini excavator and large excavator
- Haul gravel from Workshop Cove with the dump truck
- Stop a mega wave using trench plus triple-wall defense
FAQ
Q: What does the Stop The Tsunami new update add?
The update deepens the defense loop with trench digging tools, direct wall-building tools, and heavy machines including the bulldozer, mini and large excavators, dump truck, and cement truck, plus a quarry area for gravel and boulder materials.
Q: Which tool should I buy first?
The sand trencher offers the best early value. A deep forward trench makes incoming waves drop into the pit and hit your dam with less height, letting you survive bigger waves with cheap equipment.
Q: How do I deal with waves that go over my wall?
Layer your defenses. Build two or three wall rows behind each other, keep the middle section thick, and keep a trench behind the main wall so overflow water has somewhere to drop instead of reaching the town.
Q: Are boulders worth hauling with the dump truck?
Boulders are strong but the truck only carries four per trip, which makes them slow to place. Gravel is usually the better play — dump piles along the wall line and spread them with the excavator for fast stabilization.