Here is the full list of all 100 Territory Idle achievements.
Get 10B wood
Get 1B holiness
Get 1M holiness
Get 10B wheat
Max workers on a wheat tile: 100
Max workers on a wood tile: 100
Get 10 tiles on one continent
Get heritage
Perform 10 rituals
Get 1K holiness
Get religion
Get 1M faith
Get 10M wood
Get 10M stone
Get 1K faith
Perform 1 ritual
Get 10K stone
Buy 3 tiles on all continents
Get 10M wheat
Get 50 gold
Get 10K wood
Get 10K wheat
Get 20 tiles on one continent
Get 40 tiles on one continent
Get 60 tiles on one continent
Get 100 tiles on one continent
Buy 10 tiles on all continents
Buy 25 tiles on all continents
Buy 50 tiles on all continents
Buy 100 tiles on all continents
Capture 10 tiles on all continents
Capture 25 tiles on all continents
Capture 50 tiles on all continents
Capture 100 tiles on all continents
Spend 1 empire point
Spend 3 empire points
Spend 10 empire points
Spend 20 empire points
Spend 50 empire points
Sail to another continent
Sail to another continent 3 times
Sail to another continent 6 times
Sail to another continent 10 times
Sail to another continent 25 times
Perform 100 rituals
Perform 1000 rituals
Perform 10000 rituals
Get 1 relic
Get 3 relics
Get 6 relics
Get 1B faith
Get 1T faith
Get 1Qa faith
Get 1T holiness
Get 1Qa holiness
Get 10T wheat
Get 10Qa wheat
Get 10T wood
Get 10Qa wood
Get 10B stone
Get 10T stone
Get 10Qa stone
Get 50K gold
Get 50M gold
Get 50B gold
Get 50T gold
Get 10 fame
Get 100 fame
Get 1000 fame
Get 5000 fame
Get 2500 fame
Max workers on a wheat tile: 200
Max workers on a wheat tile: 300
Max workers on a wheat tile: 500
Max workers on a wheat tile: 1000
Max workers on a wood tile: 200
Max workers on a wood tile: 300
Max workers on a wood tile: 500
Max workers on a wood tile: 1000
Max workers on a stone tile: 100
Max workers on a stone tile: 200
Max workers on a stone tile: 300
Max workers on a stone tile: 500
Max workers on a stone tile: 1000
Max workers on a farm tile: 100
Max workers on a farm tile: 200
Max workers on a farm tile: 300
Max workers on a farm tile: 500
Max workers on a farm tile: 1000
Max workers on a temple tile: 100
Max workers on a temple tile: 200
Max workers on a temple tile: 300
Max workers on a temple tile: 500
Max workers on a temple tile: 1000
Max workers on a school tile: 100
Max workers on a school tile: 200
Max workers on a school tile: 300
Max workers on a school tile: 500
Max workers on a school tile: 1000