In Wolfenstein II: The New Colossus, players have the opportunity to enhance their gameplay experience through the innovative use of Contraptions—unique gadgets that grant BJ Blazkowicz various abilities to navigate and engage with the game world. Below is a detailed guide on how to unlock and upgrade these Contraptions, providing players with strategic options for combat and exploration.

How to Unlock Contraptions
Players will unlock their first Contraption following the completion of the “Courthouse” mission. Upon returning to Eva’s Hammer, the player’s base of operations, they will be presented with the option to select their initial Contraption. The remaining Contraptions can be located by revisiting specific districts on the world map after the main story missions, allowing for a more exploratory and engaging experience. Importantly, none of the Contraptions are missable; players can return to collect them and their upgrades even after the main story has concluded.

The Three Contraptions and Locations
Here’s a concise overview of the three Contraptions available in the game, along with instructions on how to find them:

| Contraption | How to Unlock | District to Visit | Who to Talk To for Side Quest |
|———————-|———————————————————|——————————-|————————————-|
| Battle Walker | Select it as your first Contraption or talk to Barbara Casey | Transporthalle district on Venus | Barbara Casey |
| Ram Shackles | Obtain by speaking with Lucien Woolrich | Bienville Street district in New Orleans | Lucien Woolrich |
| Constrictor Harness | Talk to the correspondent on Eva’s Hammer | Various districts; related side quests originating from NPCs on Eva’s Hammer | Various specific NPCs |

How to Upgrade Contraptions
Once players have acquired a Contraption, they can enhance its effectiveness through side quests. Upgrades yield beneficial perks that aid in combat and exploration. Below are the details on how to upgrade each Contraption:

– Battle Walker Upgrade:
– NPC: Irina Yakova
– Location: Near the club entrance on Eva’s Hammer.
– Perk: The Staminal upgrade allows players to maintain overcharged health until they suffer damage.

– Ram Shackles Upgrade:
– NPC: Ritva Tuomivaara
– Location: Near the elevator by the canteen on Eva’s Hammer.
– Perk: The Mechanic upgrade provides regenerating armor.

– Constrictor Harness Upgrade:
– NPC: Various NPCs on Eva’s Hammer (marked on the map).
– Perk: The Iron Lung upgrade extends the duration players can remain constricted, enabling better stealth options.

Additional Notes
– Players can activate the upgrade side quests immediately after acquiring the respective Contraptions, allowing the perks to be used in subsequent combat missions.
– Eva’s Hammer and all unlocked districts remain accessible even after the main storyline is complete, giving players the freedom to explore and complete Contraption-related quests at their leisure.

This system not only enhances gameplay but also encourages players to revisit areas, discover all available upgrades, and strategically plan their use of Contraptions. By providing depth through exploration and customization, Wolfenstein II fosters a rich gaming experience that goes beyond its primary narrative.