Template:Update Pre-Alpha was the main stage of development in Lumber Tycoon 2. It took place before the official Alpha Testing Stage. Pre-Alpha lasted from around the beginning of Summer 2015 to August 29th 2015. While there isn't much known about Pre-Alpha, there is still a lot known.
During Pre-Alpha
During Pre-Alpha the core functions of the game were being developed such as axes, trees & sawmills. Tree growth & Tree generation were some of the first features Defaultio began working on, then axes, chopping & sawmills.
Around the near-end of Pre-Alpha Defaultio had began hiring Pre-Alpha testers to test the game & find bugs within the game. The only currently known Pre-Alpha tester is EpikYummeh. EpikYummeh's name can be found within the credits.
When Defaultio had Pre-Alpha testers the most basic functions had already been implemented such as trees, Sawmills, Vehicles, Axes & StoreItem function etc. It is possible that the Stone Axe was at one point the only axe avaliable & that the other axes came later, as said by EpikYummeh. Vehicles also didin't have any headlights during this time.
Vip Room
The Vip Room was a "room" accessible during Pre-Alpha. While its true purpose is unknown, it is believed that the Vip Room was a sort of "starter-pack" for Pre-Alpha testers.
The Vip Room contains many testing items such as the Stone Axe, the Fair Sawmill, a Worklight, most of the conveyors and supports & a box featuring an MS Paint-drawn car on the front with a text saying "TEST". The MS Paint-drawn car's function is unknown, but it is highly likely it is just be a normal vehicle.
Stone Axe
The Stone Axe was an item that could be obtained in the early development of Lumber Tycoon 2. It was later replaced by the Basic Hatchet due to that fact that this axe had not been retextured in any way. The Stone Axe was the only axe avaliable at a point in Pre-Alpha.
The Blue-Brick Building
The Blue-Brick Building was a structure that could be found beside Wood R Us at one point during Pre-Alpha.
The purpose of the building is completly unknown. However EpikYummeh has said that it may have been a garage for vehicles before spawn pads were a thing. But this may be false as he isn't 100% sure as he doesn't remember much of the Pre-Alpha stage.
The design of the Blue-Brick Building is unknown, but the only avaliable photo of this building can be found in Defaultio's twitter shows only the small space between this building & Wood R Us, but in the image a window can be seen on the blue brick building.
Tree Growth
Tree Growth & Tree Generation was one of the very first features implemented into Lumber Tycoon 2, even being worked on before the summer of 2015.
Back in spring of 2015 Defaultio was experimenting with tree generators & tree growth, some of his most earliest trees had cylinder-shaped logs instead of the regular rectangular logs. The Cherry Tree was one of the first trees made in one of Josh's generators. It is unknown if tree generators would eventually evolve into the creation of Lumber Tycoon 2 or if it was just a side project along with Lumber Tycoon 2.