How to Farm Meta Points and Crush Bosses in Monsters are Coming! Rock & Road

Last Updated on 6 February, 2026

You likely know the frustration of watching your mobile city crumble under a relentless horde while your resources dwindle to zero. This guide eliminates the guesswork by providing a mathematically proven roadmap to dominate every difficulty level from Hard to Nightmare. We break down exact tower synergies, expose the most efficient ways to farm Meta Progression Points, and reveal how to turn the screaming of your residents into a productivity tool. Master our Mirror City and Royal Mausoleum strategies to stop struggling and start crushing the apocalypse with ruthless efficiency.

Cracking the Meta Progression Formula

You cannot build a strong city without Meta Progression Points. These points allow you to upgrade your most vital stat, which is City Durability. Understanding how the game calculates these points serves as your first step toward efficiency.

Many players waste time destroying special objects within a stage. While this looks fun, the game only awards you a single point for each destroyed object. This creates a terrible return on investment. Instead, the game calculates your points based primarily on the distance your town travels. You need to keep moving, and you need to crank up the difficulty.

The difficulty setting acts as a massive multiplier for your final score.

1. Hard Difficulty: Boosts your score by 50%.
2. Expert Difficulty: Doubles your score with a 100% multiplier.
3. Nightmare Difficulty: Triples your score with a 200% multiplier.

The math dictates a simple strategy. As soon as you have unlocked enough upgrades to survive, you must leave the lower difficulties behind. Staying on a lower difficulty wastes your time because you miss out on these massive multipliers. You should pour every point you earn into City Durability to ensure your town survives longer, travels further, and banks even more points.

The “Screaming Alarm Clock” Farming Method

You do not always need to be glued to your screen to make progress. The game allows for a highly efficient lazy farming strategy that lets you earn points while you focus on real-life tasks.

The concept works simply. You start a stage and walk away. Your city will travel a certain distance before the inevitable destruction occurs. Because points come from distance traveled, you earn a small but steady stream of points for every doomed run. You can accumulate a massive amount of meta progression just by checking in occasionally to restart the game.

To maximize your efficiency here, you need to know exactly when the run ends without looking at the screen. We recommend turning your sound effects on. The game provides a very distinct audio cue when your city falls. The townsfolk will scream in rage, despair, and pain. These screams serve as your notification that the run has finished. When you hear the wailing of your residents, click restart. Do not feel bad for them. The game recycles these residents into minions for future runs, so nothing goes to waste.

Hard Mode: The Mirror City Cloning Facility

When you feel ready to tackle Hard Mode, you should deploy to Mirror City. This map offers a unique advantage that we can exploit to break the game’s difficulty curve. In Mirror City, every single building you place spawns a second copy.

Quantity Beats Quality

Your goal involves flooding the map with bodies. You want to prioritize towers that summon units, specifically the Necromancy Tower (which summons Decaying Minions) or the Sapper Tower (which summons Explosive Minions). Because of the Mirror City passive, one placement gives you two towers. If you place 20 Necromancy Towers, you actually end up with 40 towers on the map.

With 40 minions swarming the field every nine seconds, enemies simply cannot reach your city walls. They die before they even get close.

The Cursed Ballista Combo

Once you have your army, you need a way to kill the boss. This is where the Cursed Ballista shines. This tower gains 10% damage for every active minion on the map. With 40 minions active, your Ballista deals massive damage. You only need to place this tower twice (creating four total ballistas) to decimate bosses. Place one set at the top and one at the bottom.

The Upgrade Trap

You must exercise discipline with your upgrades.

1. Do upgrade the Cursed Ballista. You need the damage quality for the boss.
2. Do NOT upgrade the Necromancy or Sapper Towers. You only need them for the quantity of bodies they produce. A level 1 minion counts the same as a level 5 minion for the Ballista buff.

Also, avoid buying buildings that offer small percentage damage boosts (like +7% minion damage) in the early game. Replacing a summoning tower with a damage booster reduces your total minion count. You want more minions, not slightly stronger minions.

Nightmare Mode: Surviving the Royal Mausoleum

Nightmare Mode changes the rules. Enemies move faster, hit harder, and money becomes scarce. The Mirror City strategy often fails here because the early game is too brutal. To survive Nightmare, we move to the Royal Mausoleum.

The Royal Mausoleum offers the easiest early game experience, which buys you the time you need to establish a working economy.

The Economy First Approach

In Nightmare, gold solves every problem. You need to focus your entire early game strategy on acquiring gold.

1. Reroll for Economy: Look for the Bookstore (converts Water to Gold) or the Wandering Market (converts Wood to Gold).
2. The 9 Gold Cap: You can reroll the shop to find these items, but never spend more than 9 gold on rerolls. If you go higher, you destroy your profit margins.
3. The 5 Gold Rule: Always buy resource buildings or houses in the shop if they cost 5 gold. Even if they are not perfect, they are cheap assets that help you survive until you find your core towers.

Level Up Priorities

Whenever the game offers a Level Up reward, always choose the option that gives you 3 Buildings. It does not matter what the buildings are. Getting three structures for free is infinitely better than paying 30 gold for them in the shop. This is purely a value play to fill your map with assets.

The Tower Tier List: Winners and Money Pits

In Nightmare difficulty, buying the wrong tower means death. We have analyzed which towers pull their weight and which ones act as expensive traps.

The Winners

1. Fire Dragon: This is your essential counter to Bats. In Nightmare, fast-moving Bats with low HP will rush your city. The Fire Dragon clears them out instantly.
2. Slime Vat: This tower offers a unique defensive mechanic. It heals your hero, which allows you to use your character’s body to block enemies. You can physically push enemies aside or tank hits to protect the city, then heal up with the Vat.
3. Swing Saw: You must have this for the frontline. It clears trees instantly, which prevents you from getting stuck when you need to harvest. It also deals decent damage to enemies in the immediate vicinity.
4. Ice Fire / Ice Ballista: These provide necessary crowd control by pushing enemies to the sides or piercing through groups.

The Traps (Do Not Buy)

1. Fragmentation Mortar: It costs too much gold to make this tower useful. At level 1, it does almost nothing.
2. Skull Cannon: This tower spawns an explosive shell when a minion dies. This only works if you already have a massive army. It does not help you survive the difficult early waves.
3. Blizzard Bellows: While good for the backline, this tower attacks too slowly to stop the fast bats at the front.
4. Golden Slingshot: This requires a massive gold investment to function properly. You simply do not have the budget for this in Nightmare.

How to Beat Boss Waves (Without Fighting)

The Boss Wave (Wave 4) intimidates many players, but you can cheese this encounter by refusing to fight fairly. The secret lies in Harvesting.

The Pacifist Weapon Strategy

You do not need a weapon that deals high damage. You need a weapon that summons minions. Look for weapon upgrades or types that have a chance to summon minion on harvest.

1. Equip a Drill (for stone) or a Wood Cutter (for wood).
2. Ensure you have the weapon attribute that spawns minions when collecting resources.
3. When the boss arrives, ignore him. Run to the nearest resources and start harvesting as fast as you can.
4. Every time you harvest, you spawn 2 or 3 minions.
5. These minions will flood the lane, distracting the boss and preventing him from reaching your city.

The Wood Boss Hazard

You must stay alert for the Wood Boss. This specific enemy fires a Rudal that can destroy your city in three hits. You cannot ignore him completely. You must position your hero outside of your city so that he aims the projectile at you, not the buildings. Furthermore, do not bring wood back to the base during this fight, as the Wood Boss heals when you bank wood.

The Medieval Fair Wood Rush Strategy

While the Royal Mausoleum is great for gold, we have found that the Medieval Fair offers a potent alternative strategy if you prefer a different economic model.

This map allows you to convert Wood into Gold much faster than other cities, which fundamentally changes how you build your economy.

1. Max Stats: You need to maximize your Hero Movement Speed and Harvesting Speed.
2. Phase 1: Focus entirely on long-term investments and farming wood.
3. Phase 2: Shift to city protection once your economy is booming.

This strategy requires you to play fast. You will not be rerolling for gold buildings; you will be chopping trees to fund your army. If you get the minion-spawn weapon early, you can focus purely on harvesting while your summoned units handle the defense.

Conclusion

Surviving this chaotic road requires you to abandon sympathy and embrace pure calculated strategy. You now possess the blueprints to clone armies in Mirror City and the economic insights to buy your way through the Royal Mausoleum. Apply these tactics to turn every run into a point-farming machine and let the inevitable screams of the townsfolk signal your success. Get out there and conquer the wasteland before the monsters even get close to your gates.