To get this achievement solo, you'll need to defeat the AI over and over. Now, in RoA2, if you had a controller, you could fight against yourself and climb the ranks that way, but on this game we have the community levels, so we just need to find a map that's quick and lets us win while the AI can't win. Luckily, such a map exists.

• Name: rank up
  
• ID: 3E3J7

It is a very short map, where the AI for some reason never places units. The AI also only uses weak boulders that recharge after yours, so you don't even need to place units yourself to defend against the AI.

I've gone ahead and counted the TOTAL amount of wins it'll take for you to reach each rank, starting at 0 rank. You'll just need to win 29 times to get to High King (A).

• E - 4
  
• D - 8
  
• C - 14
  
• B - 20
  
• A - 29

The best way to go about that map is with the following loadout:

• Boulder: Sand Boulder (it has the best balance of recharge time and damage to the enemy's gate)
  
• Units: Guillotine, Fan, Fireworks, Lion Balloon, Phoenix Tree (COMPLETELY OPTIONAL!)

With those choices, you'll always deal 178-180 damage to the gate, killing it in 3 hits. Each battle takes 4 minutes from selecting a team to victory, if you always go when your boulder is ready.

The units I selected are just there to give you easy/fun ways to slow down the enemy, but again, you don't need them, you'll always win if you always send out your boulder when it's ready. Remember that money bags also fall on the enemies side, if you're gonna place units.

If you're curious, this is how I like to setup my defenses on this map:

A weird thing I've noticed on this map: There is a spot where you can place a phoenix tree right on top of an already existing structure, clear the squares below that same unit, and then place another unit, stacking them on top of each other. With that you can for example place 2 guillotines on top of each other (with the blades pointing at opposite directions) causing any enemy boulder to die instantly if it touches the blades.


Steam user Espadana has found another great map to get ranks with. The map's ID is 3E899, and using the potato boulder you'll win with a slightly lower time than the previously suggested map, with the plus that the AI doesn't move on this map for some reason. Both options work regardless, so pick whichever you preffer, and get grinding!

If all that sounds too boring for you, just post a comment on this guide and add me, and I'll help you get those ranks! Since I'm at 5K you'll get a lot more rank points per win, so you'll need a lot less than 29 wins to get there.

I've done this for RoA 1 with the multiplayer achievements there, and in RoA 2 for the rank achievements. If you also need those, let me know and add me, I can help there too!