Update 17 has officially arrived in SpongeBob Tower Defense, and it brings one of the biggest content drops yet. From a brand-new world set in Rock Bottom to fresh mythic units, a limited-time mount, and major UI improvements—there’s plenty to explore. Whether you’re here for the gameplay challenge or to collect new units, this guide breaks down everything you need to know in the latest update.
All New Things in Spongebob Tower Defense Update 17
1. Explore Rock Bottom – New Story World
The spotlight of Update 17 is Rock Bottom, a mysterious and eerie place where SpongeBob needs your help to escape.
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10 New Chapters to progress through
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2 Endless Modes to test your squad’s strength
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Complete all 3 difficulties (Normal, Hard, and Nightmare) to earn rewards and unlock achievements
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You’ll need to finish Chapter 10 in Sandy’s Treedome (World 5) to unlock Rock Bottom
This new story world is loaded with content, perfect for players looking for a fresh challenge or those aiming for full completion.
2. New Units in the Gem Summon Pool
Update 17 also adds four new summonable units to the Gem Summon pool, offering a mix of Mythic, Legendary, and Epic rarities:
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Mythic – Bert: Applies Poison Damage and also slows enemies, making him a strong crowd-control unit
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Mythic – Tiff: Details not fully revealed, but expect Mythic-tier performance
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Legendary – Jojo: Likely strong damage or utility support
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Epic – Sand Creature: A more accessible unit with decent abilities for mid-game
Use your gems wisely and check for drop rate boosts or banners that feature these units. Check out how well all this new unit in our Spongebob Tower Defense Guide!
3. Exclusive Unit Drop – Glove World SpongeBob
There’s a Legendary-exclusive unit you can only earn by playing through Rock Bottom Story Mode:
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Glove World SpongeBob is available as a drop reward during your playthrough
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This unit includes chances to unlock variant versions, giving collectors even more to chase
Don’t skip these missions if you want to complete your unit collection.
4. New Features & Quality of Life Updates
Here’s a quick overview of all the new features and improvements added in this update:
Trading Enhancements
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Search by Username in the Trading Hub
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Tap to Request Trades directly on the map
Unit Storage Upgrades
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Gift & Trade ‘+100 Unit Storage’ Packs
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Max unit storage capped at 1200 slots
Interface & Gameplay Improvements
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New Effect Type Chart in Unit Index – learn how effects like Burn, Poison, Slow stack
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Updated Story Queue Screen – now cleaner and more responsive
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Refined Unit Manager – lets you adjust attack priority directly
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Patch Notes with Images – better visuals for all future update logs
Gameplay Adjustments
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Removed Dry/Cold Conditions from Sandy’s Treedome (for now)
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These may return as special challenge modifiers in future events
SpongeBob Tower Defense Update 17 Codes – Are There Any?
- EscapeTheDepths
- ROCKBOTTOM101
Also check out our previous Spongebob Tower Defense Codes for more redeemable rewards!
Update 17 is packed with content, from a new world and units to player-friendly features and big-time challenges. Whether you’re diving into Rock Bottom or grinding for the new Glove Balloon Mount, this update gives all players—new and old—reasons to jump back in. Get your squad ready, spin for those Mythic units, and don’t forget to complete Rock Bottom before the deadline if you’re after those time-limited rewards.