Here is the full list of all 33 Girl Genius: Adventures In Castle Heterodyne achievements.
100% completion.
Win the game on Hard, without decreasing the difficulty.
Win the game on Normal Difficulty or higher, without decreasing the difficulty.
Win the game on any difficulty.
Destroy 4 or more enemies with one Deathray blast.
Launch a Chicken Clank by hitting it with the Wrench, and the explosion destroys 3 or more enemies.
Hit a Chicken Clank with the Wrench that results in a chain explosion of 3 or more Chicken Clanks.
Destroy 15 Fencing Clanks.
Destroy 25 Chicken Clanks.
Destroy 5 Fencing Clank Captains.
Destroy 5 Nyar Spiders.
Experience a Spark Moment.
Command the castle to release a trap.
Rebuild a Scrap Trap.
Defeat the Crypt Clank
Defeat Dr. Silas
Find a total of 777 Resources (Scrap, Mechanical Parts, Wild Invention)
Find all Heterodyne Artifacts.
Find all Lore Segments.
Find all Blueprints for your weapons and tools in Castle Heterodyne.
Repair the Coffee Machine.
Find all the portraits made by a master.
Assemble the Dingbot Army and be Supreme.
Destroy an enemy with a moving Rollerclank.
Defeat all the challenges with a Mastery Badge in the Arena.
Find the “Mirror Shard” Artifact before building the Boom Clank on the Workbench.
Upgraded the Coffee Machine to its highest tier.
Build all modules for your weapons and tools to their highest tier.
Command the Castle to destroy 3 or more enemies with a single trap.
Destroy a Shield Clank that is currently shielding 3 or more enemies.
Find all allies in Castle Heterodyne.
Defeat Zola Malfeazium
Find Chronomoira the Clank in the Arena.