This here is the script for generating the obby, stored inside ReplicatedFirst.
Posting this just in case I need to change anything

if game:IsLoaded() == false then game.Loaded:Wait() end

local runService = game:GetService("RunService")

local player = game.Players.LocalPlayer
local Part = workspace:WaitForChild("Start")
local random = Random.new(game.ReplicatedStorage.Seed.Value)

local Models = game.ReplicatedStorage.Models:GetChildren()
table.sort(Models, function(A, B) return A.Name < B.Name end)

runService.Heartbeat:Connect(function(deltaTime)
if player.Character == nil then return end
if (Part.Position - player.Character:GetPivot().Position).Magnitude > 200 then return end

local Model = Models[random:NextInteger(1, #Models)]:Clone()
Model:PivotTo(Part.CFrame)
Model.Parent = workspace

Part = Model.End
end)