Perhaps one of the most important tools in Aegis’ kit is the Oil Burette in Steelrising. Upgrading this is not only possible, it is important. The Oil Burette is the primary form of healing for Aegis in the game and should be a major priority for players to find upgrade parts for.
However, this requires finding Lavoisier Catalysts and Sublimators, which hide in several areas across Steelrising. At the beginning of the game, the Oil Burette restores 200 HP and has 1 charge, but it can be upgraded in time.
Lavoisier Catalysts will increase the number of charges the Oil Burette has, and Lavoisier Sublimators will increase the amount of health it restores. Once these are found, players can return to the Horseless Carriage or a Vestal to upgrade the Burette.
The search in Saint-Cloud begins after defeating the Unstable Lancer. There will be a nearby bridge and a tower, which will also contain the Nemesis Claws. These are one of the best agility weapons in the entire game, so this is worth picking up too.
Players will want to head to the nearby Forest and stop by the Vestal. In the center of the Forest there is a stone well, which is guarded by two Automats. Best these in combat, then look for a chest near the well.
The next Catalyst in Steelrising comes in the Tuileries. After getting to the Vestal area, players will follow the path through the nearby row of buildings. A large street awaits, and at the end, a set of stairs are located on the left.
After defeating the upcoming Frost Musketeers and other foes, the chest is near a set of wooden barrels.
After coming to Place de la Comedie, head down the right street. A grappling point can be found here. Grapple again and you can get into the building. From there, exit via the balcony
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