Here is the full list of all 52 REMEDIUM: Sentinels achievements.
Survive 10 minutes in Crossroads.
Survive 10 minutes in Church.
Find and save Barbican in Crossroads.
Find and save Lamina in Church.
Pick up 3 repair kits.
Survive 12 minutes as Gladiator.
Survive 10 minutes as Barbican.
Get Percussor to MAX level.
Get Machine Gun to MAX level.
Get Sawblade to MAX level.
Get Emitter to MAX level.
Get Mine to MAX level.
Get Mortar to MAX level.
Loose 10000 hp
Destroy 50 objects
Collect 10000 scrap
Play all levels
Find and save Odin in Ruins.
Purchase Abbot for 5000 scrap.
Purchase Archangel for 5000 scrap.
Survive 15 minutes in Crossroads.
Survive 15 minutes in Church.
Survive 15 minutes in Ruins.
Survive 10 minutes in Ruins
Kill boss in Frozen Path
Clear Frozen Path level
Clear Mine level
Kill Perun in Mine
Find and save Jackhammer in Frozen Pass
Survive 10 minutes in Mine
Clear Swamp level
Upgrade all weapons to the limit
Unlock all Golems
Earn 20000 scrap
Earn 1000 points saving people and collecting vessels in Rush Mode
Earn 2000 points in a Rush Mode match
Kill 10000 enemies
Reach experience level 100
Clear the plague in Crossorads
Clear the plague in Church
Clear the plague in Ruins
Clear the plague in Frozen Path
Clear the plague in Mine
Clear the plague in Swamp
Disinfect all levels
Kill a million enemies
Complete any level skipping all upgrades
Skip 20 upgrades in a match
Survive 1 minute in Rush mode skipping all upgrades
Survive 2 minutes in Rush mode skipping all upgrades
Survive 3 minutes in Rush mode skipping all upgrades
Complete a level without taking any damage