Let’s Build a Zoo: Technology Guide (All Tech Tree)

This is a guide for the tech tree. In this game, the tech tree is shown progressively as you unlock techs. You can only see directly next to the techs that you’ve unlocked–save for a few specific ones. This makes it difficult to find a tech if you say, want to unlock 2 researchers, as they do not follow distinct and separate branches. To get a researcher, you have to go down the biome path or down from the Nursery path. Examples like this are all throughout the game, so I hope to help people find out which research is actually important to them based on their goals in the game.

This guide is basic information complete, but I will edit later for better formatting and to add more information on specific techs.

• Part 1 [Full Tree] Shows images of the full tree with highlights based on specific types of tech
• Part 2 [Descriptions] Has the information on cost and description of the tech.
  • Format: The number of the tech going from left to right – [Research cost] Name – description and requirements (if applicable)
  • Naming Convention: 1-8d, 1-8u. D means down. U means up. Starting from the first two lines you have access to when starting the game.

Restrooms

1. [16] Crop Seeds – Watermelon [Requires: Farm Plot | Farmhouse]
2. [14] Plant Pack – Animal Hedges
3. [15] Employee Unlock – Mascots
4. [18] Factory – Abattair (turn live animals into dead animals – best way to get meat quickly) [Requires: 40 Immorality]
5. [9] Subway Pack – Classic
6. [2] Shelter Back (Special)
7. [1] Bench Pack – Garden Benches
8. [1] Desert Enclosure
9. [5] Nursery
10. [6] Deco Pack – Animal Statues
11. [7] Breeding Facility – Utrasound (allows you to predict the appearance of any offspring before it is born)
12. [9] Animal Enrichment – Cliff
13. [14] Deco Pack – Zoo Sign
14. [20] Sundae Shop

1. [16] Deco Pack – Themed Archways
2. [25] Zoo Bus Upgrade – Upsized White Bus
3. [9] Deco Pack – Banners
4. [12] Tropical Juice
5. [5] Animal Enrichment – Leaf Pile
6. [2] Signboard Pack – Navigational
7. [3] Floor Pack – Stone
8. [5] Cotton Candy
9. [2] Plant Pack – Bushes
10. [6] Choco Vendor
11. [6] Floor Pack – Nature
12. [10] Fountain Pack – Tall Fountains
13. [20] Lamppost Pack – Twin Lights
14. [14] Water Basin – Large, Natural

1. [23] Advertising – Richer Visitors
2. [15] Plant Pack – Special Forest Plants
3. [18] Burger Shop
4. [17] Barn [Requires: Warehouse | Cow | 50 Morality]
5. [6] Floor Pack – Blue/Orange
6. [10] Processor (convert deceased animals into useful resources) [Requires: Warehouse | 5 Immorality]
7. [7] Ice Cream Van
8. [5] Savannah Enclosure
9. [4] Crop – Soybeans [Requires: Farm Plot | Farmhouse]
10. [5] Animal Enrichment – Scent Markers
11. [6] Incenerator (burn deceased animals to dispose of unsightly corpses)
12. [10] Bins Pack – Recycling Bin [Requires: Recycling Center | 30 Morality]
13. [18] Recycling Center
14. [10] Rock Pack – Ice Rocks
15. [14] Floor Pack – Special
16. [22] Subway Pack – Animal Subway

1. [21] Park Bin Capacity
2. [16] Deco Pack – Themed Archways
3. [12] Animal Enrichment – High Beams
4. [9] Animal Enrichment – Chew Toys
5. [8] Crop Seeds – Sugarcane
6. [7] Animal Enrichment – Water Sprinkler
7. [8] Reduce Pregnancy Time (pregnancies are always 1 day long in Nursery) [Requires: 10 Morality]
8. [10] Arctic Enclosure
9. [12] Popcorn Stall
10. [20] Researcher Pack – Researcher +1
11. [12] Water Tower [Requires: 20 Morality]
12. [15] Zoo Bus Upgrade – Red Bus
13. [8] Plant Pack – Mushrooms
14. [20] Factory – Milk Battery [Requires: Warehouse | Cow | 50 Immorality]
15. [21] Beer Brewery [Requires: 85 Morality]
16. Processor – Extra Animal Undertakers [Requires: Processor]

1. [19] Deco Pack – Air Dancers
2. [17] Deco Pack – Animal Ice Statues
3. [12] Bins Pack – Animal Bins
4. [14] Taco Truck
5. [15] Lamppost Pack – Themed Lights
6. [9] Restroom Pack – Themed Restrooms
7. [12] Tropical Enclosure
8. [9] Signboard Pack – Navigational
9. [18] Furnace – burn your trash [Requires: 30 Immorality]
10. [12] Vet Office
11. [8] Floor Pack – Decorative Tiles
12. [9] Animal Enrichment – Cardboard Box
13. [10] Crop Seeds – Potato [Requires: Farm Plot | Farmhouse]
14. [18] Deco Pack – Pyramids
15. [15] Shelter Pack – Themed Shelters
16. [35] Infinite CRISPR Splicers

1. [23] Recycling Center Efficiency [Requires: Recycling Center]
2. [14] Deco Pack – Totems
3. [12] Animal Enrichment – Perches
4. [11] Shelter Pack – Special
5. [12] Animal Enrichment – Jolly Ball
6. [17] Subway Pack – Themed Subways
7. [13] Restroom Pack – Nature Themed
8. [18] Cafe
9. [12] Animal Enrichment – Scratching Post
10. [11] Animal Shelter – Artic
11. [12] Crop Seeds – Hops [Requires: Farm Plot | Farmhouse]
12. [20] Farm Processor – Process your crops here, allowing you to make them ready for sale through your warehouse, and extracting my by-products [Requires: Warehouse | 75 Morality]
13. [14] Deco Pack – Lighthouse
14. [16] Fountain – Rock Falls
15. [14] Signboard Pack – Educational
16. [19] Floor Pack – Rainbow

1. [15] Plant Pack – Cacti
2. [15] Bench Pack – Rainbow
3. [14] Tree Pack – Tall Palm Trees
4. [15] Tree Pack – Dry Trees
5. [16] Crop Seeds – Bamboo [Requires: Farm Plot | Farmhouse]
6. [15] Signboard Pack – Rainbow
7. [14] Floor Pack – Grass
8. [15] Deco Pack – Colourful
9. [14] Plant Pack – Large Ferns
10. [16] Tree Pack – Season Trees
11. [15] Deco Pack – Giant Flower
12. [15] Bins – Rainbow Bin
13. [19] Fountain – Jungle Falls
14. [16] Deco Pack – Old West Structures

[/olist]

• [30] Zoo Bus Upgrade – Double Decker
• [23] Meat Processor Efficiency [Requires: Processor]
• [32] Advertising – Billboards – Increases visitors by 5%
• [23] Faster Incenerator [Requires: Incenerator]
• [19] Lampost Pack – Plant Themed [19]
• [20] Food Shop – Convert to Lab Meat
• [19] Employee Upgrades – Hiring Agency (allows you to instantly hire employees from a third party agency for a small fee)
• [20] Factory – Handbag Factory [Requires: Warehouse | Crocodile | 100 Immorality]

[/olist]

1. [18] Deco Pack – Ice Sculptures
2. [12] Animal Enrichment – Rope Toy
3. [8] Rope Pack – Large Rocks
4. [13] Release Hub (reintroduce animals into the wild – help bring back biodeveristy , and make animal populations thrive again) [Requires: 40 Morality]
5. [5] Animal Shelter – Wooden Shelter
6. [4] Animal Enrichment – Trampoline
7. [1] Tree Pack – Tall Pine Trees
8. [1] Animal Enrichment Pack – Small Ball
9. [2] Plant Pack – Potted Plants
10. [9] Lamppost Pack – Classic
11. [6] Rock Pack – Cluster
12. [17] Factory – Bacon Factory [Requires: Warehouse | Pig | 10 Immorality]
13. [10] Plant Pack – Small Desert Plants
14. [16] Restroom Pack – Temple

1. [20] Improbable Lab (use science to create vegetable based meat alternatives that are indiscernible from the real thing) [Requires: 100 Morality]
2. [19] Deco Pack – Viking House
3. [12] Crop Seeds – Beetroot [Requires: Farm Plot, Farmhouse]
4. [17] Factory – Belt Factory [Requires: Warehouse | Snake | 35 Immorality]
5. [10] Mountain Enclosure
6. [9] Lamppost Pack – Black
7. [4] Fountain – Mini Fountain
8. [5] Slushie Shop
9. [3] Bin Pack – Penguin Bin
10. [3] Tree Pack – Big Trees
11. [4] Plant Pack – Flowers
12. [10] Surveillance
13. [10] Crop Seeds – Coffee Berries [Requires: Farm Plot, Farmhouse]
14. [10] Signboard Pack – Instructional
15. [21] Factory – Wings Factory [Requires: Warehouse | Chicken | 75 Immorality]
16. [21] Park Bin Capacity

1. [18] Tree Pack – Rainbow Trees
2. [16] Deco Pack – Large Signs
3. [20] Chicken Coop [Requires: Warehouse | Chicken | 55 Morality]
4. [9] Animal Enrichment – Salt Block
5. [6] Bench Pack – Chairs
6. [10] Farming [Requires: 10 Morality]
7. [10] Electricity Siphon [Requires: 5 Immorality]
8. [5] Crop Seeds – Cabbage [Requires: Farm Plot, Farmhouse]
9. [10] Factory Pack – Wind Turbine
10. [5] Restroom Pack – Brick Restroom
11. [7] Pretzel Shop
12. [10] Water Pump Upgrade [Require: 25 Morality]
13. [9] Animal Shelter – Mossy Shelter
14. [11] Deco Pack – Old West
15. [16] Crop Seeds – Nightshade [Requires: Farm Plot, Farmhouse]
16. Farm Processor – Extra Crop Pickers

1. [21] Breeding Facility – Add Rooms
2. [15] Shelter Pack – Rainbow Umbrella
3. [16] Fountain – Elephant Fountains
4. [10] Tree Pack – Fancy Trees
5. [7] Animal Enrichment – Wooden Logs
6. [12] Sewage Recirculator [Requires: 20 Immorality]
7. [9] ATM
8. [10] Balloon Shop
9. [7] Animal Enrichment – Large Ball
10. [8] Info Kiosk
11. [10] Pizza Shop
12. [7] Signboard Pack – Navigational
13. [12] Churros Stand
14. [11] Bench Pack – Animal Benches
15. [16] Deco Pack – Desert Statues
16. [23] Meat Processor Efficiency [Requires: Processor]

1. [19] Deco Pack – Animal Ice Statues
2. [24] Subway Pack – Themed Subways
3. [13] Bench Pack – Themed Benches
4. [8] Plant Pack – Special
5. [17] Warehouse
6. [9] Floor Pack – Wood
7. [15] Lamppost Pack – Low Lights
8. [9] Deco Pack – Nature Archways
9. [8] Floor Pack – Stone
10. [9] Animal Shelter – Caves
11. [18] Factory – Glue Factory [Requires: Warehouse | Cow | 25 Immorality]
12. [12] Forest Enclosure
13. [12] Subway Pack – Animal Themed
14. [10] Plant Pack – Artic Plants
15. [21] Windmill [Requires: 80 Morality]
16. [19] Store Room – Add Fridge

1. [19] Deco Pack – Aztac Temple
2. [19] Deco Pack – Balloons
3. [10] Deco Pack – Old West
4. [20] Factory – Egg Battery [Requires: Warehouse | Chicken | 60 Immorality]
5. [12] Animal Enrichment – Car Tire
6. [13] Crop Seeds – Lettuce [Requires: Farm Plot, Farmhouse]
7. [10] Signboard Pack – Instructional
8. [12] Subway Pack – Nature Themed
9. [11] Deco Pack – Desert Archways
10. [13] Crop Seeds – Berries [Requires: Farm Plot, Farmhouse]
11. [10] Signboard Pack – Instructional
12. [12] Animal Enrichment – High Striker
13. [12] Deco Pack – Special
14. [11] Deco Pack – Themed Archways
15. [14] Deco Pack – Vine Archways
16. [23] Furnace Efficiency [Requires: Furnace]

1. [18] Plant Pack – Peafowl Bush
2. [18] Tree Pack – Giant Tree
3. [20] Fries Shop
4. [14] Rock Pack – Large Rocks
5. [33] Deco Pack – Balloon Sign
6. [15] Water Basin – Large Basins
7. [16] Crop Seeds – Corn [Requires: Farm Plot, Farmhouse]
8. [20] Bar
9. [15] Bins Pack – Wooden Bin
10. [14] Floor Pack – Biome
11. [16] Deco Pack – Statues
12. [20] Gift Shop
13. [25] Lamppost Pack – Animal Lights
14. [16] Lollipop Deco

1. [30] Lamppost Pack – Themed Lights
2. [23] Faster Incinerator [Requires: Incenerator]
3. Warehouse – Extra Storemen [Requires: Warehouse]
4. Park Bin Capacity
5. [19] ATM Commision
6. [18] Deco Pack – Ice Castle
7. [19] Vending Machine Credit Upgrade
8. [26] Farmhouse – Extra Farmers
9. [32] All Bins Recycle [Requires: Recycling Center]

---

Thanks to June for his great guide, all credit to his effort. you can also read the original guide from Steam Community. enjoy the game.