Here is the full list of all 20 Red Matter achievements.
Find a way into the underground complex
Scan the Evacuation Protocol Datadrive
Scan the Basic Volgravian Datadrive
Scan the first Red King painting
Scan the Power Station Datadrive
Scan the second Red King painting
Restore the power
Access the Vault
Scan the Security Datadrive
Scan the Habitat Datadrive
Find Nikolai's secret room
Play the mysterious videotape
Scan the third Red King painting
Access the Quantum Lab
Find and scan the secret documents
Scan the Quantum Physics Datadrive
Scan the Volgravian Communication Protocols datadrive
Send the Documents
Find the special Datadrive
Complete your mission