Backpack and Backpack Upgrades
At the start of the game, your inventory consists of 21 slots (3×7).
Several backpack-related items can be found throughout the world. These include the Backpack, which increases your inventory capacity, as well as Backpack Upgrade items that further expand it.
Backpack Upgrade items have no effect if obtained before acquiring the Backpack, so make sure to obtain the Backpack first.
The required Airship Levels for each item are as follows:
- Backpack → Airship Level 3
- Backpack Upgrade 1 → Airship Level 4
- Backpack Upgrade 2 → Airship Level 5
Please refer to the map on this page for their locations.
How to Obtain Mineable Resources | Airship Levels and Available Resources
Unlocking new crafting recipes requires a variety of resources.
The table below lists each mineable resource and the Airship Level required to obtain it.
The Deposit Available column indicates the Airship Level required to reach areas containing resource deposits that can be used for automated extraction. Some resources, such as Sand and Clay, can be gathered manually on the starting island, but reaching their deposit locations for automation requires a higher Airship Level.
| Resource | First Available | Deposit Available |
|---|---|---|
| Stone | Lv0 | Lv3 |
| Sand | Lv0 | Lv2 |
| Clay | Lv0 | Lv4 |
| Iron | Lv0 | Lv0 |
| Copper | Lv1 | Lv1 |
| Quartz(Silicon) | Lv2 | Lv2 |
| Cobalt | Lv3 | Lv3 |
| Diamond | Lv5 | Lv5 |
How to Get Silicon
Silicon is obtained by smelting Quartz in a Furnace.
Unlike most other minerals, the resource changes its name after refining, which can make it confusing for new players.
To obtain Quartz, you must first upgrade your Airship to Level 2.
How to Obtain Plants | Airship Levels and Available Plants
Various harvestable plants can be found throughout the world, including Berries and Cotton.
Most plants provide one seed when harvested, allowing them to be replanted and cultivated at your base.
Since seeds cannot be multiplied during the early game, it is recommended to collect every harvestable plant you encounter.
The table below shows the Airship Level required to obtain each plant.
Algae is the only exception. It does not produce seeds and cannot be cultivated. Instead, it must be collected using a dedicated harvesting device.
| Plants | Available |
|---|---|
| Berry | 0 |
| Cotton | 0 |
| Watermelon | 1 |
| Wheat | 2 |
| Carrot | 3 |
| Sunflower | 3 |
| Corn | 4 |
| Algae | 4 |
| Tomato | 4 |
| Paprika | 5 |
Progression Requirements
Research Table Tier Unlock Requirements
The table below lists the items required to unlock each Research Table tier.
There is no need to rush to Tier 8, as it only unlocks decorative recipes. Since each tier requires only one item, it is recommended to unlock them as soon as you find the required item while exploring.
| require_item1 | qty | require_item2 | qty | |
|---|---|---|---|---|
| Unlock Tier 2 | Build-Hammer | 1 | Beeswax | 1 |
| Unlock Tier 3 | Iron | 1 | ||
| Unlock Tier 4 | Copper | 1 | ||
| Unlock Tier 5 | Wheat | 1 | ||
| Unlock Tier 6 | Sunflower | 1 | ||
| Unlock Tier 7 | Corn | 1 | ||
| Unlock Tier 8 | Diamond | 1 |
Important Recipes by Research Table Tier
This table highlights the most useful and progression-related recipes available at each Research Table tier.
After unlocking a new tier, it is recommended to prioritize these recipes first.
| Tier | Name | note |
|---|---|---|
| 1 | Rain Collector | Main source of drinking water. It is recommended to build multiple collectors. |
| 1 | Chest | Stores up to 12 item stacks. |
| 1 | Beehive | Produces Beeswax. |
| 1 | Bed | Allows you to sleep and set your respawn point. |
| 2 | Furnace | Used to smelt minerals, boil water, and cook certain recipes. |
| 2 | Map | Unlocks the world map, which can be opened with the M key. |
| 2 | Bottle | Used to carry water and boil it. |
| 3 | Airship Dock | Used for airship takeoff and landing. The first airship is also built here. |
| 3 | Storage Shelves | Can hold up to three Chests. |
| 3 | Sign & Map Makers | Allows you to enter and display text. |
| 3 | Magnetic Fishing Rod | Used for fishing. |
| 3 | Wax Briquette | Used as fuel. Lasts longer than Logs. |
| 4 | Glass Materials | Glass building material used to protect crops from storms when farming indoors. |
| 4 | Iron Tools | Unlocks recipes for iron tools. |
| 5 | Animal Basics Pack | Basic facility for raising animals. |
| 5 | Food Basket | Can be exchanged for tickets used in the vending machine at the Merchant’s location. |
| 6 | Grow Box | A planter used for growing plants indoors. |
| 6 | Cooking | Allows you to build a Kitchen. |
| 6 | Seeds Pack | Can be used to produce seeds from crops. |
| 6 | Pig Shelter | Animal husbandry facility for pigs. |
| 6 | Better Animal Feed | Unlocks a highly efficient animal feed recipe. |
| 7 | Sheep Shelter | Animal husbandry facility for sheep. |
| 7 | Diamond Tools | Unlocks recipes for diamond tools. |
Merchant Requests and Rewards
The Merchant, located near the center of the map, offers important rewards in exchange for specific items.
The rewards are primarily Blueprints and Airship Upgrades.
Blueprints are used to unlock recipes for electrical devices, while Airship Upgrades expand the areas you can explore.
| No. | require_items | require_qty | rewards |
|---|---|---|---|
| 1 | Watermelon | 4 | Sprinkler Set |
| 2 | Cotton | 12 | Blueprint |
| 3 | Beeswax | 20 | Blueprint |
| 4 | Watermelon | 10 | Blueprint |
| 5 | Copper | 32 | Airship Upgrade |
| 6 | Silicon | 5 | Blueprint |
| 7 | Wheat | 10 | Blueprint |
| 8 | Cloth | 20 | Blueprint |
| 9 | Bread | 10 | Blueprint |
| 10 | Egg | 6 | Airship Upgrade |
| 11 | Carrot | 20 | Blueprint |
| 12 | Sunflower | 20 | Blueprint |
| 13 | Cobalt | 20 | Blueprint |
| 14 | Glass | 32 | Blueprint |
| 15 | Raspberry Muffin | 2 | Blueprint |
| 16 | Truffle | 10 | Airship Upgrade |
| 17 | Tomato | 12 | Blueprint |
| 18 | Brick | 30 | Blueprint |
| 19 | Corn | 20 | Blueprint |
| 20 | Berry Cake | 3 | Blueprint |
| 21 | Sheep’s Milk | 10 | Blueprint |
| 22 | Algae | 30 | Airship Upgrade |
| 23 | Paprika | 20 | Blueprint |
| 24 | Vegetable Pizza | 4 | Blueprint |
| 25 | Diamond | 20 | Trophy |
Electrical Tier Unlock Requirements
Recipes for electrical devices can be unlocked on the Merchant’s Airship.
Blueprints are required to unlock individual recipes. In addition, the following materials are required to unlock each technology tier.
| Unlock Tier 2 | Silicon | 1 |
|---|---|---|
| Unlock Tier 3 | Cobalt | 1 |
| Unlock Tier 4 | Algae | 1 |
| Unlock Tier 5 | Diamond | 1 |
Beginner’s Guide
New to Solarpunk?
Check the Beginner’s Guide for early game progression, food and water management, Airship progression, and important survival tips.
Solarpunk © Cyberwave. This is an unofficial fan-made guide. Content and images are owned by their respective owners.
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Not sure if it was just missed, or left off for a reason. But the last 2 treasure chests I needed were on the “half in the last circle” snow island, on the far left. Just wanted to share in case someone else asks or needs the last 2.
Thanks! I think I must have overlooked those while creating the map. I’ll check the location and add them if they’re missing. I appreciate you letting me know!
After looking into it a bit more, it seems that treasure chest locations may not actually be fixed. Because of that, I’ve decided to remove treasure chest markers from the map for now to avoid providing inaccurate information.
I really appreciate you taking the time to let me know!