First actions and core systems
These achievements introduce the basic collection, battle, building and evolution loop.
- First Battle — Defeat your first Scout Rival.
- Architect — Build your first Structure.
- New Companion — Capture your first Stackmon.
- Foil Chaser — Capture your first Foil Stackmon.
- Learning & Evolving — Evolve a Stackmon.
- Shiny Tracker — Capture your first Shiny Stackmon.
Medals and story milestone
Steam lists seven named medal achievements. The separate Gaia's Hero entry is visible, but its public description is blank.
- Plant Medal — Win the Plant Medal.
- Rock Medal — Win the Rock Medal.
- Fire Medal — Win the Fire Medal.
- Water Medal — Win the Water Medal.
- Aether Medal — Win the Aether Medal.
- Soot Medal — Win the Soot Medal.
- Thunder Medal — Win the Thunder Medal.
- Gaia's Hero — Public unlock description not shown.
Progression, recipes and upgrades
These tasks expose concrete progression targets without requiring an unofficial recipe or damage table.
- Helping Gaia — Complete 20 Missions.
- Eureka! — Discover 30 Recipes.
- Engineer — Upgrade a Structure to level +2.
- Compulsive Buyer — Buy 100 Booster Packs.
- Soot Purifier — Close your first Soot Rift.
- Experienced Rival — Defeat 40 Rival Scouts.
- Experienced Combatent — Defeat 100 Stackmons. (Steam spelling)
- Rich Scout — Earn 500 Stack-Money by selling cards.
- No Pain no Gain — Reach max level with a Stackmon.
- Forger — Upgrade an equipment to level +3.
- No more Rift Points — Close All Soot Rifts.
Collection and creation goals
The remaining achievements cover broad collection completion, evolution, foil creation and breeding.
- Legendary Tamer — Capture your first Stacka.
- Life Creator — Breed your first Stackmon.
- Evolving & Learning — Evolve 15 Stackmons.
- Foil Creator — Create your first foil Stackmon.
- Legendary Power — Capture all Stackas.
- Creature Spotter — See all Stackmons.
- Creature Collector — Capture all Stackmons.
- Fire Chaser — Capture all Fire Stackmons.
- Aether Chaser — Capture all Aether Stackmons.
- Water Chaser — Capture all Water Stackmons.
- Plant Chaser — Capture all Plant Stackmons.
- Rock Chaser — Capture all Rock Stackmons.
- Thunder Chaser — Capture all Thunder Stackmons.
- Neutral Chaser — Capture all Neutral Stackmons.
Use the first-action group as onboarding
First Battle, Architect, New Companion, Foil Chaser, Learning & Evolving and Shiny Tracker expose several systems with simple first-time goals. They are useful as an orientation checklist, not a mandatory order. If one remains locked, read its exact Steam wording and compare it with the action completed in game. Similar actions can differ: seeing a creature is not capturing it, building a Structure is not necessarily upgrading one, and creating a Foil is separate from capturing a Foil.
Track long arcs without turning them into chores
The medal, collection and progression groups contain goals that can span much of a playthrough: seven medals, 20 Missions, 30 discovered recipes, 100 Booster Packs, 40 rival Scouts and broad creature collections. Use the local Achievement Tracker to mark unlocks and keep the remaining list visible. The checklist stays in this browser and never reads your Steam account or game progress.
Interpret achievement wording literally
Read each achievement literally. “Capture all Fire Stackmons” leaves the roster to the current Stackpedia. “Close All Soot Rifts” leaves the total to the live map. “Reach max level with a Stackmon” leaves the cap to the current creature card. Use the checklist for the goal and the game for the live requirement.
Update before retrying a locked achievement
Patch 9.0.84 lists achievement completion as fixed. Install 9.0.84 or newer, relaunch once and check Steam before repeating the task. Gaia’s Hero still appears without a visible public unlock description, so its condition remains unknown rather than guessed.