These are the skulls that exist in Keros Chronicles. You will be able to activate the others from 1-8 but these are the skulls for this game.
Note: If you activate the skull your achievements will be disabled. Although you can enable your achievements if you disable the skull. In other words, your achievements aren't permanently disabled.
Mission | Skull | Requirement | Location | Effect |
Birth of a new Russian Empire | Scarab Death Skull | Play the mission on Legendary | Located at the Kremlin Wall Necropolis, found in the front of the Kremlin wall, stuffed in the trees. | Makes game 2X harder |
Birth of a new Russian Empire | Invulnerability Skull | Play the mission on Legendary | Located in the Spasskaya Tower, in a secret room, guarded by Dark Juggernauts. | Makes player Invulnerable to enemy fire and destruction |
This is not the Umbrella Corp | Blind Skull | None | Found on secret room on the 5th floor | Disables HUD |
The Package | Inferno Skull | Play the mission on Legendary | Found in Board of Directors office |
Equips player with Fire weapons:
|
Search and Rescue | Trapped Skull | Kill 10 enemies | Found in a hole behind the demolished building | Brings more enemies into the level |
Iraqi War | War Skull | Kill 100 enemies | Found on the sand dumes | Disables shields |
Outbrake | Disease Skull | Play the mission on Hard or higher difficulty | Found in the diner underneath the table | Lowers shields to half life |
Infection | Quarantine Skull | Play the mission on Normal Difficulty or higher | Enemy kills an ally, skull is automatically activated | Players weapons are disabled |
A Dark Legecy | Dark Skull | None | Found in a blue bus 7th seat | Advanced Darkness on the HUD |
Operation Iraqi Freedom | Freedom Skull |
Play the mission on Normal Difficulty or higher
|
Found in iraqi palace, in main office | Enemies appear with no weapons or grenades |
Death to the Al-Kadhum | War to end all Wars Skull |
Play the mission on Legendary Difficulty Kill 50 enemies Snipe 7 enemies in a row |
Found in secret area, outside of the quad. | Player has the options to skip a level. |
All-In | Nightmare Skull | Play the mission on Legendary Difficulty | Found in board of directors office. | Parasites are harder to kill |
OPEC | Enrichment Skull | Play mission on legendary and try to find the skull | Found if you go around your oil rig 3 times and it appears in the front entrence | Allows players on multiplayer to have infinite ammo for their flamethrower attachment |