All Star Tower Defense leveling can mean two different things: raising a unit’s level with unit experience, or advancing the player account through game activity and unlocks. Community documentation describes EXP units and unit leveling, while tasks and modes can contribute to account progression. Exact EXP ratios, level caps, requirements, and rewards change, so record the current interface rather than using an old calculator blindly.
Separate the two level systems
Do not call account experience “unit EXP” or assume a unit feed raises the player level. Keep separate notes.
Choose which unit to level
Prioritize units that already fill a needed role: affordable opener, main coverage, boss damage, economy, buff, or control. A frequently deployed unit turns each level into more practical value than an untested collection piece.
First priority
The unit that prevents current Story or farming clears from failing. Test the same stage before and after leveling.
Second priority
Main damage or support used in several modes, especially when the level changes a visible comparison.
Conditional priority
A confirmed evolution base when the resulting form and recipe are ready. Avoid overinvesting before transfer behavior is known.
Low priority
Duplicates, historical event units, or aspirational forms with no current team role or verified source.
Rarity alone is not the priority. An accessible opener can unlock more progression than a high-rarity unit too expensive to deploy.
Protect units before feeding
Lock every active-team copy, limited or capsule result, high-rarity unit, and possible evolution ingredient. Open the live evolution menu for planned targets and record duplicate requirements. Community evolution pages are incomplete, so absence from a web recipe is not enough to mark a duplicate safe.
Separate inventory into active roster, recipe reserve, collection reserve, and confirmed fodder. Select fodder by exact full name and rarity. Read the confirmation preview for EXP gained, resulting level, and consumed units before clicking.
If the interface offers dedicated EXP units, verify their current value in the preview. Do not import an old ratio or assume all EXP forms are equal.
Record level gains
Before feeding, record exact unit form, current level, visible damage, SPA, range, upgrade baseline, orb, leader, and buffs. After feeding, inspect the same fields. If the level changes only some statistics, preserve the observation without guessing a hidden formula.
Use the same stage, placement, and upgrade to test performance. Community stat tables may use a fixed level such as 175 and maximum upgrade; label that baseline rather than treating it as your current unit.
Do not compare the newly leveled unit with a screenshot carrying another orb or support buff. Use Unit Stats for a controlled sheet.
Gain unit experience efficiently
Verify current sources through mode rewards, inventory drops, event shops, tasks, or other live systems. Record source, unlock, entry cost, run time, EXP item or amount, first-clear status, success rate, and attention. If the game shows a dedicated EXP reward, use that exact label.
Compare reliable gains rather than one lucky result. A repeatable easy stage can outperform a harder source when failure and loading are included. Do not claim a global rate from a small sample.
If a source also progresses tasks or yields needed currency, include that secondary value without converting currencies into invented EXP equivalents.
Raise account level through progression
Follow active tasks and Story unlocks. Record account experience or progress shown after a clear, and check locked mode messages for actual requirements. Do not repeat a historical level requirement for Trials, material farming, World 2, or another mode unless the current client displays it.
Prioritize new progression clears, then reliable repeats that advance several current tasks. Claim level rewards through the normal interface and separate one-time milestone rewards from ongoing gains.
If a level threshold unlocks a desired mode, verify it at the entrance and track the remaining account progress. That is more useful than leveling without a target.
Evolve or level first
Open the live evolution recipe and output preview. Compare the time and materials to evolve with the immediate benefit of leveling the current unit. If the unit already solves the role and evolution is blocked by a rare ingredient, leveling can support progress. If feed investment does not transfer according to the live prompt, wait until that behavior is clear.
Never assume higher rarity preserves level, orb, or every ability. Confirm before committing the active copy.
Safe leveling loop
Choose one target unit and one repeatable test stage. Record baseline, lock all protected inventory, feed only confirmed fodder, record the new level and stats, then rerun the stage. Stop when the failure condition changes or when another role becomes the stronger priority.
Continue to Evolution for recipe decisions, Unit List for roster roles, or Beginner Guide for broader account progression.