First go to:
Whatever drive)\steamapps\common\Lilith Rising - Season 2\renpy\common

You are look for a file titled: 00console.rpy

Click On it then ctrl + F

# If true, the console is enabled despite config.developer being False.
config.console = False

Change the False to True should look like:

# If true, the console is enabled despite config.developer being False.
config.console = True

Save the file
Open up your game
Shift + O
Type the following:

achievement.grant("Episode 1 Completed")