[STEAM, OS-independent] Downloading older game versions

# Installation Steps

1. In any browser, open `steam://open/console`
2. Using the `download_depot <app_id> <depot_id> <manifest_id>` command, download the respective game version. (see tables below for a list of relevant ids) i.e. for DEMO v1.0.4, execute `download_depot 3465320 3465321 965110180973610448` NOTE: the download will take a while and **DOES NOT have a progress bar** (it will tell you when it's finished, though)
3. In your steam client directory (typically located at `C:\Program Files (x86)\Steam\steamapps` (Windows) or `~/.steam/steam/steamapps/` (OSX/Linux))
4. Navigate to `content/app_<app_id>/depot_<depot_id>/` i.e. for DEMO v1.0.4, `content/app_3465320/depot_3465321/`
5. Replace everything from the game install directory (typically located at `common/Solarpunk Playtest` or `common/Solarpunk` (relative to the steam client directory)) with the contents of the directory from 4.

# Installing Latest

If you want to switch back to latest, in the steam client:

1. Right-Click the game
2. Click *Properties*
3. Click *Local Files*
4. Click *Verify Integrity of Game Files*
5. The game will be updated to the latest version available

# App/Depot IDs

| | Solarpunk Playtest &emsp;| Solarpunk Demo &emsp;| Solarpunk |
|-----|-----|-----|-----|
| App ID | `3465320` | `3465270` | `1805110` |
| Depot ID | `3465321` | `3465271` | `<unknown>` |

# Manifest IDs

## Solarpunk DEMO

| Version &emsp;| Manifest ID |
|-----|-----|
| DEMO v1.1.4 &emsp;| `3595161534228599121` |
| DEMO v1.1.3 &emsp;| `5953157183907343034` |
| DEMO v1.1.2 &emsp;| `<unknown>` |
| DEMO v1.1.1 &emsp;| `6096619770680498575` |

## Solarpunk Playtest

| Version &emsp;| Manifest ID |
|-----|-----|
| Playtest v1.1.0 &emsp;| `6383730381565125667` |
| Playtest v1.0.4 &emsp;| `965110180973610448`  |
| Playtest v1.0.3 &emsp;| `3295129331804555125` |
| Playtest v1.0.2 &emsp;| `2253424316379730715` |
| Playtest v1.0.1 &emsp;| `7834467377809532451` |
| Playtest v1.0.0 &emsp;| `3885848055709567865` |

Cheos

Solarpunk

Nobody725

Playtest v1.0.0

Playtest v1.0.1

Playtest v1.0.2

Playtest v1.0.3

Playtest v1.0.4

Playtest v1.1.0

DEMO v1.1.1

DEMO v1.1.2

DEMO v1.1.3

DEMO v1.1.4

Version

To avoid confusion and follow a more common naming scheme, categories have been renamed:
- DEMO Any% -> Demo Any% Glitchless
- DEMO Any% Glitched -> DEMO Any%

Category Rename

Steam Deck