| | KID | Deutscher Name | Englischer Name | Edition | Nummer | S | | PO1-201 | Insel | Island | Portal 1 | 201 | |
| PO1-202 | Insel | Island | Portal 1 | 202 | |
| PO1-203 | Insel | Island | Portal 1 | 203 | |
| PO1-92 | Kakerlakenplage | Endless Cockroaches | Portal 1 | 92 | |
| PO1-163 | Katzenkriegerelite | Elite Cat Warrior | Portal 1 | 163 | |
| PO1-110 | Knochenkrokodil | Skeletal Crocodile | Portal 1 | 110 | |
| PO1-111 | Knochenschlange | Skeletal Snake | Portal 1 | 111 | |
| PO1-150 | Kochende Erde | Spitting Earth | Portal 1 | 150 | |
| PO1-119 | Kochendes Meer | Boiling Seas | Portal 1 | 119 | |
| PO1-49 | Korallenaal | Coral Eel | Portal 1 | 49 | |
| PO1-98 | Königsmörder | King's Assassin | Portal 1 | 98 | |
| PO1-53 | Lampengeist | Djinn of the Lamp | Portal 1 | 53 | |
| PO1-17 | Landschenkung | Gift of Estates | Portal 1 | 17 | |
| PO1-43 | Launischer Zauberer | Capricious Sorcerer | Portal 1 | 43 | |
| PO1-137 | Lavaaxt | Lava Axe | Portal 1 | 137 | |
| PO1-138 | Lavafluß | Lava Flow | Portal 1 | 138 |  |
| PO1-10 | Lebenshauch | Breath of Life | Portal 1 | 10 | |
| PO1-15 | Leichtfüßiger Mönch | Fleet-Footed Monk | Portal 1 | 15 | |
| PO1-136 | Letzte Chance | Last Chance | Portal 1 | 136 | |
| PO1-157 | Lockender Duft | Alluring Scent | Portal 1 | 157 | |
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