Strange Gate

The Strange Gate is unlocked by the researchable upgrade Chasm Exploration, costing 1K Sharks, 1M Science and 50K Fish. Once discovered the gate asks for 6 different items in specific quantities. These quantities must be met all at once, as the gate will not accept partial payments. The items the gate requests are determined by the type of world, and the quantity requested is the base amount multiplied by both the climate level and the gate cost multiplier of the gate controller artifact. The formula for this can be shown as ((BaseCost) * (ClimateLevel) * (GateCostMultiplier)), with the gate cost multiplier formula being (0.9 ^ GateControllerLevel)

Once all 6 slots are filled the gate opens and you can enter the Gateway. From there you can purchase Artifacts and proceed to other Worlds.

Gate Requirements
{| class="article-table" cellpadding="20"

Starter World

 * 1M Fish
 * 1M Sand
 * 1M Crystals
 * 1K Kelp
 * 1K Sea Apples
 * 100K Sharkonium

Abandoned World

 * 100M Residue
 * 5 Purifiers
 * 100K Coralglass
 * 100K Spronge
 * 100K Delphinium
 * 100K Sharkonium

Chaotic World

 * 100K Sponge
 * 100K Clams
 * 1M Sand
 * 1M Crystals
 * 1000 Sharks
 * 1M Sharkonium

Frigid World

 * 1M Sand
 * 10K Crystals
 * 1000 Clams
 * 5 Heaters
 * 10M Sharkonium
 * 10M Fish

Haven World

 * 10M Fish
 * 10M Clams
 * 10M Sponge
 * 1B Kelp
 * 10K Coralglass
 * 1M Coral

Marine World

 * 1M Fish
 * 1M Sand
 * 1M Crystals
 * 1K Kelp
 * 1K Sea Apples
 * 100K Sharkonium

Shrouded World

 * 100M Jellyfish
 * 1M Clams
 * 1B Crystals
 * 1B Science
 * 10M Sharkonium
 * 100M Fish

Tempestuous World

 * 1B Residue
 * 1M Coral
 * 1M Spronge
 * 1M Delphinium
 * 1M Sharkonium
 * 1M Crystals

Violent World

 * 10B Sand
 * 1B Kelp
 * 1M Coral
 * 1000 Algae
 * 1M Sponge
 * 1B Residue
 * }

Trivia
The presence of a gateway to another universe at the bottom of the ocean is reminiscent of the H.P. Lovecraft canon, but Cthulu never passed through a gateway into our world. In fact, R'lyeh (Cthulu's home) is a city that sank into the Pacific much like Atlantis, and the creature itself is said to lie in sleep at the bottom of the sea.