The portal appears in the back room after unlocking the "Portal 1" skill.
Shoppe Keep presents players with certain skills and upgrades for their shoppe as they play the game. Skills can be viewed by the player in the shoppe menu by pressing Q, and then selecting skills. Skills can only be purchased with Keep Points (or kPoints) 
which are earned by selling merchandise from your displays, whenever you order merchandise and have it delivered, or when you complete quests. You can also buy 1 kPoint for 10,000 
coins.
There are currently six different trees of skills players can upgrade from, each shown below in their respective tabs. (Names given to the skill trees are unofficial)
To upgrade all 40 skills, the player would need a total of 5,070 kPoints.
Economic Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Anti Haggle 1 |
Acquire 10% more on every sold item in the shop. (+10%) | 5
|
 Anti Haggle 2 |
Acquire 20% more on every sold item in the shop. (+10%) | 15 Requires: Anti Haggle 1 |
 Anti Haggle 3 |
Acquire 30% more on every sold item in the shop. (+10%) | 40 Requires: Anti Haggle 2 |
 +1 Item |
Customers tend to buy another item after their first purchase. | 25
|
 Entry Fee |
Get some gold as an entrance fee. | 55
|
 Rich Customers |
Customers now have an added 30% tolerance to prices. | 50
|
Merchandise Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Portal 1 |
Unlock a mystic portal that hastens delivery time. | 25
|
 Portal 2 |
Make your portal stronger, getting even faster delivery times. | 80 Requires: Portal 1 |
 Bulk Discount |
Acquire a 10% discount from every order purchase. | 35
|
 Tier 1 Warrior |
Unlock tier 1 warrior items:
|
120
|
 Tier 2 Warrior |
Unlock tier 2 warrior items:
|
250 Requires: Tier 1 Warrior |
 Tier 0 Mage |
Send out a caller to the mage tower and get some mages around the shop. Also unlocks: | 80
|
 Tier 1 Mage |
Unlock tier 1 mage items:
|
120 Requires: Tier 0 Mage |
 Tier 2 Mage |
Unlock tier 2 mage items:
|
250 Requires: Tier 1 Mage |
 Tier 0 Rogue |
Try to send some secret messages and get rogues roaming around the shop. Also unlocks: | 80
|
 Tier 1 Rogue |
Unlock tier 1 rogue items: | 120 Requires: Tier 0 Rogue |
 Tier 2 Rogue |
Unlock tier 2 rogue items:
|
250 Requires: Tier 1 Rogue |
 Tier 0 Druid |
Send a note written on some bark to the forest and get druids around. It doesn't unlock new merchandise to sell. | 80
|
 Tier 1 Druid |
Unlock tier 1 druid items:
|
120 Requires: Tier 0 Druid |
 Tier 2 Druid |
Unlock tier 2 druid items:
|
250 Requires: Tier 1 Druid |
Security Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Moral Guide |
Make the thieves steal less. | 15
|
 Think Again |
Thieves, before stealing, will think once more about that decision. | 50 Requires: Moral Guide |
 Anti-Zap |
Innocent customers become immune to your spells. | 200
|
 Thief Barrier |
Your shop gets protected by a bug... thief zapper. | 150
|
 Barrier Cooldown |
Lower the cooldown of the barrier. | 350 Requires: Thief Barrier |
Furniture Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Popular |
The shop is now more popular. Add 30% to maximum appeal. | 250
|
 Engineering |
Unlock engineering items to sell, place and use: | 100
|
 Planting |
Unlock the backyard where you can plant and harvest plants. It unlocks: | 100
|
 Vinyl Player |
Unlock a Vinyl Player to customize the music of your gameplay. | 80
|
 Shelf |
Unlock a Shelf to be placed in the shop, which holds 12 small items. | 5
|
 Armor, Hat Rack |
Unlock the Armor Rack and a Hat Rack to be placed. | 20
|
 Floor Mats |
Unlock Floor Mats that will soak up some of the dirt from the customers. | 80
|
 Counter, Weapon Rack |
Unlock a Counter and Weapons Rack to be placed in the shop. | 20
|
Crafting Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Grinder |
Unlock a big Grinder which will grind up any and all items into liquid materials. | 150
|
 Cauldron |
Place a Cauldron to mix materials in the backroom. | 150 Requires: Grinder |
Customer Tree
| Skill Name | Description | Cost In kPoints |
|---|---|---|
 Champion |
Unlock your trusty Champion who will go on adventures for you. | 400
|
 Move Bodies |
The ability to pick up and move bodies. | 200
|
 Customer Talk 1 |
When offering items to customers face to face, mark up the price to 150%. | 50
|
 Customer Talk 2 |
When offering items to customers face to face, mark up the price to 190%. | 250 Requires: Customer Talk 1 |
 Customer Talk 3 |
When offering items to customers face to face, mark up the price to 210%. | 400 Requires: Customer Talk 2 |