Update 17 just dropped in SpongeBob Tower Defense, and let me tell you—it’s a big one. The devs took us somewhere we’ve all been curious (and maybe a little terrified) to visit: Rock Bottom. Yeah, that eerie, shadowy place at the bottom of the ocean? That’s your new battleground. And it’s not just a visual change—there’s a ton of new content packed into this update.
New World: Rock Bottom Unlocked
You’ll need to finish Chapter 10 in Sandy’s Treedome (World 5) to even access Rock Bottom, so if you haven’t done that yet, time to grind. Once you’re in, get ready for 10 new chapters and 2 brand-new Endless Modes. And if you’re the type that can’t resist a challenge, three difficulty tiers and achievement rewards are waiting for you. It’s a full-on story arc—protect SpongeBob and find a way out of the depths.
Fresh Units Just Dropped
What’s an update without some new characters to flex in your lineup? We’re getting four new Gem Summon units, and they’re pretty wild:
- (Mythic) Bert — brings Poison damage and slows enemies down. Super clutch for crowd control.
- (Mythic) Tiff, (Legendary) Jojo, and (Epic) Sand Creature round out the batch.
There’s also an exclusive Legendary Glove World SpongeBob you can snag only from playing Rock Bottom’s story. Bonus? Variant versions are in the mix too. It’s like a collector’s dream.
One-Time-Only Challenge Alert
This weekend only, there’s a limited-time Mount Challenge. Beat all Rock Bottom chapters on Nightmare difficulty and score the Glove Balloon Mount—but you’ve got until Monday, April 28 at 11:59 PM CT, and not a second longer. No pressure, right?
Quality-of-Life Tweaks That Actually Matter
Trading got a solid upgrade. You can now search by username in the Trading Hub and tap on players in the map to send trade requests directly—huge time-saver. Plus, if you’re running out of unit space, you can now gift and trade +100 Unit Storage packs (up to 1200 max). A small touch, but game-changing for those of us with overflowing inventories.
UI & Gameplay Polish
There’s a new Effect Type Chart in the Unit Index (finally explaining how different status effects interact—thank you). Also, the story queue got a sleek redesign, and the Unit Manager is way more intuitive now, letting you shift attack priorities all in one place. Patch notes even got a glow-up with images and more detailed info from past updates. Nice touch.
Oh, and for those who hated the Dry/Cold conditions in Sandy’s Treedome—they’ve been removed (for now). But don’t get too comfy. They might show up again as challenge conditions later on.
That’s a lot to unpack, and honestly? This might be one of the most exciting updates we’ve seen in a while. Between the deep-dive into Rock Bottom, mythic units, and the time-sensitive mount challenge, there’s something here for everyone—from casual players to hardcore grinders.
Got thoughts? Strategies? Need help clearing Nightmare mode? Let’s talk in the comments—maybe even drop a guide together. And don’t forget—codes are still a thing in the game, so don’t miss out on those extra boosts.
