Areas visited while completing main quests
1 – Awakening, Siblings: Place where you can meet with doctor Zere
2a – First Assignment: Place where you can find Spike.
2b – First Assignment: Area where you must prepare the first trap.
2c – First Assignment: Trapped survivor; shelter.
2d – First Assignment: Area where you can contact the GRE.
2e – First Assignment: Area where you must arm two new traps.
2f – First Assignment: Areas where you must arm the traps for the night mission.
2g – First Assignment: Power distribution panel.
2h – First Assignment: Area where you can contact the GRE for the second time.
3a – Airdrop: Area where you can contact the GRE.
3b – Airdrop: Area where you can find the first airdrop.
3c – Airdrop: Area where you can find the second airdrop.
3d – Airdrop: Area where you can find the third airdrop.
4a – Pact with Rais: Area where you can contact the GRE.
4b – Pact with Rais: First telecommunication antenna.
4c – Pact with Rais: Second telecommunication antenna.
4d – Pact with Rais: Area where you can contact the GRE for the second time.
4e – Pact with Rais: Jaffar's Wheelstation.
4f – Pact with Rais: Entrance to the tunnel.
4g – Pact with Rais: Fishermen's village.
4h – Pact with Rais: Lost patrol.
5a – Siblings: Area where you can meet with Jade.
5b – Siblings: Entrance to the school.
5c – Siblings: First area that you need to explore.
5d – Siblings: Warehouse entrance.
6a – The Saviors: Area where you can meet with a representative of The Saviors.
6b – The Saviors: Slums exit.
7a – Extraction: Starting area if you've chosen the main passageway through the sewers.
7b – Extraction: Starting area if you've chosen the alternative passageway through the sewers.
7c – Extraction: Rais's tower.