Leveling

Each Growtopian has levels, and you can gain levels by breaking blocks, farming, and earning Achievements. All of those activites will give you XP. The highest level you can reach is lvl 99. Once you hit certain level milestones, you earn specific achievements. Making it to level 10, for example, gives you the "DING!" achievement, and reaching level 50 will give you the "Long Time Fan" achievement with a Mini Growtopian. Many players think that the higher level you have, the better you are. This is false, as levels are only really a measure of how much farming a player does. Seth and Hamumu may add more features to do with leveling in the future.

As of the 03/01/2016, The way XP is earned has changed according to Hamumu on the "Announcements" sub-forum.

The Big XP Patch!

Today, since we accidentally removed XP-gain from picking up ATM gems during yesterday's balance patch, we're actually doing a complete overhaul of XP gain. It turns out there are a lot of activities that didn't give any XP at all previously, which really should've. We also feel that leveling is slower than it should be, so this update is meant to notably improve your leveling speed (how much you gain really depends on what you do, though! But the option is now there to gain much much faster than before).

The bad news: Picking up gems, for any reason, no longer grants XP!

The huge list of good news:

• Like taking care of silkworms? Silkworms now give 10 XP each time you feed/water them (was 1).
  
• Got lots of Growtokens? Experience Potion is doubled to 10,000 XP.
  
• You do a lot of farming? We doubled the XP from tree harvesting...
  
• ...and raised the block-smashing XP from 1 per block, to being dependent on rarity, so up to 20x more (or more, but who is farming Game Graves?).
  
• Surgeons? You now get 50 XP per successful surgery (instead of zero)
  
• You like to fish? You get 1 XP per 10lbs your catch weighs (minimum of 1 XP)
  
• Parkour expert? 50 XP for finishing a Wolfworld.
  
• New agey? 20 XP for shattering a Harmonic Crystal.
  
• Firefighter? 1 XP per fire put out.
  
• Radioactive? 10 XP for every geiger find.
  
• Hate clothes? 1 XP for every clothing item compacted.
  
• Fun and games? 5 XP per Carnival game won.
  
• Heroic quester? 100 XP for each Ringmaster quest step completed.
  
• Smithing in your blood? 100 XP for every successful use of the Forge.
  
• Handy with a needle? 20 XP for every successful sewing project.
  
• Dressed like Santa? No more -XP when Sack o' Joy drops gems.
  

So yeah, lots more ways to get XP, and lots more XP from them!