The Riftbreaker

So I’m posting this in Going Green and also in Walk in the Park.

(currently this achievement only unlocks in survival, not campaign.)

These two can be easily cheezed and completed in about 45 min. Just recommended that you have played through campaign first as it’s a fun game.

For the setup, chose Survival and then Custom Difficulty in the Tropical Zone.
In options for custom
Enemy damage factor 1%
Resource volume factor Pump this to 250% or higher
Research cost 5%
Building cost 1%
Building time multiplier 1%
Items dropped after death 0
Wave Interval duration 00:30:00
Game duration 00:30:00
Warmup duration 00:15:00 This can be shorter but longer is easier
Attacks per wave multiplier 1.0
Map size 4 X 4
Gravity Scale 100%
Time of day mode continuous
Enemy wave Strength Easy

When you drop in find a good place to start near some Carbonium. Build the HQ, all the harvesters and then spam those solar panels and wind farms as you’re nearly building almost for free. Protect the base with some nearly free turrets and walls. REMEMBER NO CARBONIUM POWERPLANTS.

Once you build the Laboratory research buildings first and then weapons. Main buildings are the improved harvesters, better green energy and then defenses. Only need 1-2 carbonium and 1 iron zones to harvest as you’ll only be using it to develop your own weapons.

Heads up with upgraded buildings! If you hold down as you build them, then they can be built to the highest level available. Considerably faster than building lv 1 and then upgrading to lv 3.

I preferred the Minigun and Power Fist as the Minigun tears up at high ammo cost for range and the Power Fist can Stun and regenerates damage. Upgrades get the Reflective Armor and Titanium Machinery to move faster,

Skill setup I used was Instant Repair, Small Mine, Gravity Mine, Grenade, Radar Pulse, Emergency Explosion, Sentry Gun and Nuclear Mine. Swap out the mines and Grenades for your preferred play style.

Build up plenty of Defenses, have a Geothermal plant if you want, double up on repair towers near the corners and main buildings, get plenty of Tower Ammo and prepare for the horde at 30 min as it’s slightly less intense than the attacking horde you experience in the campaign. After the timers run down and if your base survives you’ll complete it and get the 2 achievements at the same time.

This really felt like really hard to beat at first,
But finally did it on survival mode.

Adjust the difficulty as per your linking. For me it helped the most to increase the period between attacks to 20 minutes and the rift time to 3:00. you may do it faster though.this way I was able to recover from the attacks easily and rebuild the base as needed.

It helped a lot to build a lot of walls as the swarm stays busy to destroy the walls instead of heading to the HQ. Have some long range turrets (artillery mostly) ready to fight them back.
Make sure you have enough ammo depots and factories to priories new ammo for the longer lasting fights.

The final fight is really hard, it was a close call in the end.

So in short:
- 20+minutes between attacks
- build a lot of walls
- have enough ammo for your stronger turrets


This should get you going