Currency Farming

Miner Gun Builder has four distinct currencies: Money, Yellow Squares (YS), Red Crosses (RC), and Reputation.

## Money Farming

In the very early game, gaining more money is best achieved by replaying levels with a lot of blocks, that you're capable of clearing. Some levels, like 9, are specifically called out as "farm" or "grind" maps in the level description, and can be useful for this, but generally you should just replay whatever level you can *easily* clear that has the highest return, as shown by the money number below the level number. Ultimately, level 96 is the highest-profit level among the Classic levels, and should net you over 1G money per run. Note that clearing a level *faster* makes it give more money, so a slow grind on something you can *barely* clear is not only frustrating, but counter-productive - instead just grind a level that's fast and easy but pays out a little less.

At some point you will be able to afford Captain Uranus. Buy him ASAP, and level up his unique ability. You will now earn 1.1% interest on your current balance every time you finish a level; this translates to doubling your money every 63 levels. Build up a reasonable nest egg again by grinding high-profit levels a few times, then build your Farming Ship:

* You want a high fire-rate ship with a medium amount of space. If you already have a good ship, just use its B layout (switch in the upper-right corner in the Item Loadout screen); otherwise buy something cheap and fast like Radio Seeker.
* Give it an Add Projectile, a Speed Up or two, and a bunch of AoE items.

Now, play Level 0. Your Farming ship should have enough AoE to clear the entire level in two or three bullets without you having to touch anything. Place your finger over the "Replay" button on the results screen (upper-left corner) and just mindlessly tap that. Each run should just take a second or two, so in a few minutes you'll have several times your starting money, and can probably afford a better ship or more items to let you push further in Levels or Worlds. Repeat this process as needed.

(If this is too boring, using Uranus while pushing thru easy Worlds can also be useful. The money from early Worlds is insignificant compared to the money from later Levels, so Uranus can boost your bank account until you get to Worlds that actually pay out reasonably.)

## YS Farming

Equip Captain Neptune, fully skill him, get the Ad bonus if desired, and head out into Worlds. Clear any yellow-square Worlds you find. If you're flying in a high enough Tier that you're regularly seeing YS worlds worth at least 20 YS, use a Money Cross in your ship if you can spare the space. (The 6% bonus isn't worthwhile below that.)

A YS world is always worth at least 1 YS, and can be worth a *maximum* of 1/10th its Tier, so pushing out to the highest Tier you can still easily clear is useful, then just circle at that Tier.

With the "50% chance of YS on clear" skill from Neptune, the "10% chance of YS after each flight" ad bonus, and Neptune's unique "25% chance of doubling YS", you can randomly get 1-4 YS on ordinary worlds as well. This isn't much but it adds up, especially early-on.

A good YS-farming ship should have:

* As much damage as possible, so you can farm at a higher Tier.
* A bunch of Rectangle AoE specifically, *not* Circle AoE.
* As much bullet output as you can reasonably manage. Use of Combine 10 is *discouraged*.
* Standard other stuff - Pierce, some Bounce, etc.

Then just hold down slightly to the side and let your ship coast sideways as it clears the level. Bullet spam and Rectangle AoE will minimize the chance that you get stuck with 1 block left somewhere that you have to manually hunt down.

## RC Farming

Put 10 Rectangle AoE items in your custom ship, and then just boost damage as much as possible in whatever ways you have access to. Start a Waves run when you're busy doing something else (and have your phone charging), and come back in twenty minutes to do it again.

## Reputation Farming

You'll earn some reputation for joining a Faction, and a little more by clearing their levels, but most of your Reputation will come from trading in YS or RC, so just farm whichever of those you're better at (or both, since YS requires active play and RC requires passive play).

Note that each Faction tracks Reputation *separately*, so don't accidentally purchase a bunch of Hyperion reputation when you're trying to buy a Void ship. Go to the Faction screen you want to buy the Rep for!