How to Get Stars
All the ways to earn Stars - the premium currency - and the best ways to spend them.
Overview
Stars are a premium currency in Merge a Black Hole, mainly earned by attacking the Sun and planets. They're spent in the Star Shop on boosts, protection, and other powerful items.
Unlike cash, Stars don't accumulate on their own, so you have to actively fight for them. Plan your Sun attacks and code redemptions carefully to keep a healthy supply of Stars ready for the upgrades that matter most.
Ways to Earn Stars
Every method of obtaining Stars, ranked by accessibility so you know exactly where to focus your effort first.
Sun damage is the primary ongoing source for active players, while codes and Robux offer quick top-ups whenever you're short for a specific purchase.
| Method | How |
|---|---|
| Sun damage | Top damage shares the Star reward pool |
| Planet targets | Destroy planets for bonus Star drops |
| Codes | e.g. FREESTARS grants two free Stars |
| Robux | Buy Stars directly for an instant top-up |
Earning Stars from the Sun
The main way to earn Stars is dealing damage to the Sun. The players who deal the most damage share a Star reward pool when the Sun is finally defeated by the whole server working together.
Because the Sun has over a million HP, it takes many attackers - but the top damage dealers earn the most Stars by far. Aiming for weak points whenever they appear is what maximizes your personal share of that pool.
Planets and asteroids also drop Stars and other rewards between major Sun events, making PvE targets a steady secondary source that keeps your balance growing.
Best Ways to Spend Stars
Three high-value Star Shop purchases that deliver the most impact per Star you spend, ordered by when they pay off.
Prioritize these to get compounding returns - a good cash boost pays for itself many times over during an active session, while protection prevents catastrophic losses.
Cash Boosts
Multiply your income with 2x cash boosts that scale directly with however strong your current holes already are on your base.
Hole Protection
Guard your top hole with protection so a raid can't wipe out your best earner overnight.
Spawn Boosts
Buy 2x hole spawn to build tiers much faster and refill your base quickly after a setback.
Star Farming Strategy
A routine for maximizing your Star income across every Sun event and session.
Each step increases your share of the reward pool, and chaining them together turns a weak Star flow into a steady one.
Pair this with strong defense so your attacking holes survive to deal damage throughout the entire fight.
Build Strong Holes
Reach late tiers for enough base damage to compete for the top Sun reward shares.
Attack the Sun
Launch your strongest holes at the Sun during every attack window to keep your damage contribution climbing.
Hit Weak Points
Aim for weak points the instant they appear, since their bonus damage is what pushes you up the leaderboard.
Spend Wisely
Reinvest earned Stars into boosts and protection that further increase your damage and income for the next event.
Star Tips
Quick pointers for managing your Stars so you always have enough for the purchases that matter.
Treat Stars as fuel for boosts and protection rather than a number to hoard, and your progression speeds up noticeably.
- Redeem the FREESTARS code for free Stars the moment you start a run, before grinding the Sun.
- Read the Star Shop guide before spending so every Star goes toward your biggest current bottleneck.
- Equip a Wormhole boost to deal more Sun and player damage, lifting your reward share each fight.