Here is the full list of all 24 Lichtspeer trophies - there are 6 bronze, 10 silver, 7 gold and 1 platinum.
Buy all Lichtpowers
Play Lichtspeer for 5 hours
Finish the game on normal difficulty
Score 1000 headshots
Kill 1000 enemies
Get the I see the Licht artifact
Score 100 headshots
Get the Super Brillen artifact
Buy first Lichtpower
Kill 100 enemies
Get the Farspeer artifact
Get your first artifact
Use a lichtpower for the first time
Platinum
Score 10000 headshots
Kill 10000 enemies
Play Lichtspeer for 12 hours
Play Lichtspeer for 100 hours
Buy everything in the Lichtshop
Finish the game on normal+ difficulty
Finish the game on rage quit difficulty
Finish the game on rage quit+ difficulty
Get UBER ratings on all levels in normal difficulty
Get UBER ratings on all levels in rage quit difficulty