Gubby Tower Defense Guide: Difficulty order and what to expect
About
OverviewGubby Tower Defense is a Roblox game where you place characters called Gubbies — each with their own abilities, strengths, and weaknesses — to stop the Gubby Kingdom. This guide covers how to climb the difficulty ladder, unlock boss towers, boost your starting cash, and make the most of limited-time events.
What is on this page
Contents
Difficulty order and what to expect
Step
The game has three main difficulty modes: Easy, Medium, and Hard. Each one rewards a badge when you clear it.
- Start on Easy use this run to watch enemy paths and see what each Gubby actually does in practice.
- Move to Medium once Easy is cleared.
- Tackle Hard last.
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Unlocking the King and Queen Gubby towers
Warn
Gubby Kingdom is the only map where King Gubby and Queen Gubby appear. Killing Queen Gubby unlocks the ability to buy the Queen Gubby tower, and killing King Gubby unlocks the King Gubby tower. Neither unlock is available on any other map, so if you want these towers, you must choose Gubby Kingdom deliberately.
Boosting your starting cash
Check
Joining the developer's group and liking the game on its Roblox page together grant +50 starting cash per game. Both actions are free and optional.
- Find the developer's group through the game's Roblox page and join it.
- Press the like button on the game's Roblox page.
Limited-time event modes
Tips
Past events have included a 2025 Halloween event and a Delayed Winter event. The Halloween event has separate badges for Easy and Hard completions, while the Delayed Winter event had its own Easy mode badge.
- The 2025 Halloween event had two badge tiers — one for Easy and one for Hard.
- The Delayed Winter event ran its own Easy mode with a separate badge, distinct from the main difficulty badges.
Keeping up with updates and bugs
Summary
The developers have said outright that balance changes and bugs are something to expect. An update log UI was added in the August 15, 2026 update.
- Update log UI added August 15, 2026.
- Sandbox mode added in the August 15, 2026 update.
- Medic tower added in the August 15, 2026 update.
Glossary
Glossary- Gubby
- A character in the game that acts as a placeable tower, with its own unique abilities, strengths, and weaknesses.
- Cash
- The in-game currency; your starting amount can be raised by 50 if you join the developer group and like the game.
- Gubby Kingdom
- The specific map where King Gubby and Queen Gubby appear as bosses, and the only place where their respective tower unlocks can be earned.
- Sandbox mode
- A mode added on August 15, 2026.
- Medic tower
- A tower type added in the August 15, 2026 update, reflected in the game's current title.
Common questions
FAQHow do I unlock the King Gubby and Queen Gubby towers?
You have to kill each boss on the Gubby Kingdom map. Killing Queen Gubby unlocks the option to buy the Queen Gubby tower, and killing King Gubby unlocks the King Gubby tower. Neither can be unlocked on any other map.
Which difficulty should I start with?
Start with Easy. Once Easy is cleared, move to Medium, then Hard.
How do I get the +50 starting cash bonus?
Join the developer's group and like the game on its Roblox page. Both steps together give you 50 extra cash at the start of every game, and both are free.
The game feels different from last time I played — what happened?
Balance changes and bug fixes ship regularly. Open the update log UI inside the game to see what changed in the latest patch.
Game updates can change what is on this page. If you spot something, get in touch and let us know.
