Base defence
How to Lock Your Base in Merge a Nuke
Lock before every logoff — step-by-step with screenshots. Updated August 2026.
Quick Answer
Lock your base step by step
Screenshots from Rondoblox: Merge a Nuke gameplay tutorial. Step images are annotated gameplay stills for this guide — not official Roblox promotional art.
- 1
Click the lock icon in the top bar
The lock control sits in the top UI — tap or click it before you merge, raid, or log off. If the timer is not running, your stored cash is vulnerable to raids.
The top-bar lock is the fastest check — run it before every break.Watch at 0:20 - 2
Confirm your plot shows protected on the map
Open the map view and verify your base displays as protected. If you are about to log off, re-check the lock after your last raid — raiding does not auto-lock you.
Map view confirms protection from a distance — useful before a long offline session.Watch at 2:20
Upgrade lock duration
Lock Base is one of the three core upgrades alongside Spawn Tier and Max Spawn. Each level lengthens how long your plot stays protected. Prioritize it once you are earning meaningful offline cash — see our Offline Earnings guide for the full pre-logout checklist.
Frequently Asked Questions
What happens if I forget to lock my base in Merge a Nuke?
Other players can raid your base and steal a portion of your stored cash. Locking does not boost income, but an unlocked base effectively wipes offline earnings if you get hit.
How do I upgrade lock duration in Merge a Nuke?
Buy Lock Base upgrades in the shop. Each level extends how long protection lasts — prioritize it once passive income matters more than your next merge.
Does locking prevent all raids?
Locked bases cannot be raided for stored cash. You still need to lock again after raiding someone else — launching nukes does not keep your own base protected.