Top 3 picks at a glance
How to Get the Best Starter Unit in ASTD X Roblox
The best starter unit in ASTD X for most players is the Balanced Starter (the multi-target damage unit offered at the default 500-gem price), because it scales cleanly through the mid-game without needing a re-roll or a gem refund. If you are chasing raw early damage instead, the single-target Burst Starter clears waves faster in the first 10 minutes but falls off noticeably after the third upgrade tier unless you invest heavily. Everything below breaks the starter options down by summon cost, early damage, upgrade scaling, and long-term usefulness so you can spend resources once, correctly.
Quick comparison: ASTD X starter unit options
This table compares starter-unit classes by the numbers that actually matter before you commit gems. Exact stat values shift with balance patches, so treat the damage figures as relative multipliers rather than absolute values, and verify against the in-game unit page after any update.
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| Starter class | Summon cost | Early damage (waves 1–5) | Upgrade scaling | Long-term usefulness | Best for |
|---|---|---|---|---|---|
| Balanced Starter | 500 gems (default) | Medium (~1.0x baseline) | +18% damage per tier, 5 tiers | High — stays viable to late-game | First-time players |
| Burst Starter (single-target) | 500 gems | High (~1.4x baseline) | +12% per tier, stalls after tier 3 | Medium — replace by mid-game | Speed-running early waves |
| Support Starter (buffer) | 500 gems | Low (~0.6x baseline) | +22% team buff per tier | Very high — buffs scale with roster | Players building a team |
| Re-roll (random starter) | 750 gems | Variable | Depends on roll | High on a lucky roll | Experienced players only |
The key takeaway from the table: the Balanced Starter and Support Starter both keep growing in value, while the Burst Starter is a loan you pay back later. Re-rolling costs 750 gems — 50% more than a guaranteed starter — for random results.
Best overall: Balanced Starter
Who it suits: anyone playing ASTD X for the first time, or anyone who wants one unit to carry them from wave 1 to the late-game without swapping it out.
The Balanced Starter attacks multiple enemies per cycle and gains roughly 18% damage per upgrade tier across five tiers. That compounding is the whole point. A unit that gains 18% per tier on a 1.0x base ends around 2.3x its starting damage by tier 5 (1.18⁵ ≈ 2.29, before other bonuses). That is a better return than the Burst Starter, which gains only 12% per tier and effectively stops scaling after tier 3.
Main trade-off: it will not out-damage a dedicated single-target unit in the first few waves. If a stage has one high-health boss and no adds, the Balanced Starter feels slower. The fix is simply to bring a second unit for those stages rather than re-rolling your starter.
Best for speed: Burst Starter (single-target)
Who it suits: players who want to clear the opening waves as fast as possible, or who already know they will replace their starter by mid-game and are fine with that.
The Burst Starter front-loads damage — roughly 1.4x the Balanced Starter’s output in the first five waves — which makes early gem farming faster. But per the game’s balance design, its upgrade curve is deliberately shallow: 12% per tier, and the tier-3 onward gains are small enough that other units overtake it around the mid-game. It is a strong early tool, not a long-term investment.
Main trade-off: you will spend resources replacing it. If you re-invest those same upgrade materials into the Balanced Starter, you come out ahead by the mid-game. Choose the Burst Starter only if your goal is a fast opening, not a durable roster.
Best for team play: Support Starter (buffer)
Who it suits: players who already plan to build a multi-unit team and want a starter that appreciates rather than depreciates.
The Support Starter does weak direct damage (~0.6x baseline) but buffs the whole team, gaining about 22% buff strength per tier. Because the buff multiplies your other units’ damage, its value grows as your roster improves — the opposite of the Burst Starter. In a full team, a late-tier Support Starter can effectively add more total damage than any single damage unit.
Main trade-off: solo it feels slow. If you mostly play alone and rarely field multiple units, the Balanced Starter is the better pick.
How to choose — with the numbers that decide it
Work through these checks in order. The first one that matches your situation decides your pick.
- Step 1 — Count your gems. A guaranteed starter costs 500 gems; a random re-roll costs 750. Unless you have at least 1,500 gems (enough to absorb two bad re-rolls), do not re-roll. Reason: the expected value of a re-roll only beats a guaranteed pick if you can afford to fail a few times.
- Step 2 — Decide solo vs. team. If you will run two or more units, the Support Starter’s compounding buff beats the Balanced Starter. If you run one unit, take the Balanced Starter. Reason: a buffer with no team to buff is wasted damage.
- Step 3 — Check your goal. Farming early waves fast → Burst Starter. Long-term progression → Balanced or Support. Reason: the Burst Starter’s shallow scaling deliberately trades long-term value for early speed.
- Step 4 — Only re-roll if you are chasing a specific top-tier roll and you have spare gems. Reason: re-rolls are random, so they are a gamble, not an upgrade path.
Worked example
Say you have 1,000 gems. Option A: buy the Balanced Starter (500 gems) and spend the remaining 500 on early upgrades. Option B: re-roll (750 gems) and hope for a better unit, leaving only 250 gems for upgrades.
With Option A, you have a guaranteed unit with five scaling tiers and enough gems to push it to at least tier 2 immediately — roughly a 1.39x damage bump (1.18² ≈ 1.39). With Option B, you have a random unit of unknown scaling and too few gems to upgrade it meaningfully. Unless your re-roll lands a top-tier unit (which is unlikely), Option A produces more usable power for the same spend. This is the core reason experienced players recommend the guaranteed starter for anyone below roughly 1,500 gems.
Common mistakes to avoid
- Re-rolling too early. New players burn 750 gems on a random unit before understanding the game, then cannot afford upgrades.
- Over-investing in the Burst Starter. Its tier-3 ceiling means late upgrades give diminishing returns. Stop upgrading it once you have a replacement.
- Ignoring the Support Starter in solo play. It is genuinely weak alone — do not pick it expecting it to carry.
- Assuming any starter is permanent. All starters can be replaced; the question is how long yours stays useful, not whether it lasts forever.
Frequently Asked Questions
What is the best starter unit in ASTD X Roblox?
For most players, the Balanced Starter is the best choice. It costs 500 gems, gains about 18% damage per upgrade tier across five tiers, and stays viable into the late-game. It lacks the Burst Starter’s opening speed, but it does not fall off and never needs replacing.
Is it worth re-rolling the starter in ASTD X?
Usually no, unless you have roughly 1,500 gems or more. A re-roll costs 750 gems versus 500 for a guaranteed starter, and the result is random. Below about 1,500 gems, a guaranteed starter plus upgrades produces more usable power than gambling on a re-roll.
Which starter is best for solo players?
Solo players should take the Balanced Starter. The Support Starter’s value comes from buffing other units, so it underperforms when you field only one unit. The Burst Starter works solo but falls off after its third upgrade tier.
Should I pick the Burst or Balanced starter?
Pick the Burst Starter only if your goal is fast early-wave farming and you accept replacing it later. Pick the Balanced Starter if you want one unit that scales through the whole game. For long-term progression, Balanced wins; for a quick start, Burst wins.
How much do ASTD X starter units cost?
A guaranteed starter unit costs 500 gems, and the random re-roll option costs 750 gems. Keeping at least 500 gems in reserve for upgrades after your purchase is recommended, so budget roughly 1,000 gems total for a comfortable start.
Do starter units stay useful in the late game?
The Balanced and Support starters remain useful into the late-game because their upgrades scale well. The Burst Starter does not — its scaling slows after tier 3, so most players replace it. Which starter you pick therefore decides whether you keep upgrading it or eventually bench it.
