Bug Evolution Spider Comparison: What You Can Compare Before You Spend Coins

Quick answer

You can compare Bug Evolution's spider forms on the in-game Bug Tree and in the published tree listings. What is documented for the free spider ladder is a set of decision costs — coins, level gates and which form each spider evolves from — not per-form stat tables. Only three paid spiders have published stat lines. Compare costs, lineage and the fly-versus-ground capability split, then let the NEXT marker in your own tree settle the exact figures.

• The free ladder's documented gates: Jumping Spider (450 coins, Lv 15), Wolf Spider (1,800, Lv 28), Tarantula (12,000, Lv 40), Brood Mother (35,000, Lv 55), Giant Huntsman (75,000, Lv 80).
• The Level 12, 200-coin fork decides your first big spider: the Housefly branch leads to the Black Widow, the Grasshopper branch to the Jumping Spider.
• No free spider form is documented as able to fly — flight and its combat escape belong to the fly forms, which get FLY/DOWN buttons and a Proboscis ability.
• The Robux Spiders tab lists five spiders from R$49 to R$79, but published stats exist only for the Emerald Jumper, the Obsidian Widow and the prehistoric Mongolarachne.

Before you commit tens of thousands of coins to a spider direction, it helps to know which differences between the spiders are actually documented and which still have to be read off your own screen. The comparison lives on one menu — the Bug Tree — and the confirmed differences are about commitment: what a form costs, what level it asks for and which bug it evolves from. This page walks through that comparison, the first fork that decides your route onto the spider ladder, and the paid spiders that come with real stat numbers.

If you want every confirmed form rather than a decision-focused comparison, the all-spiders guide lists them; and if you are chasing the "strongest spider" endgame goal specifically, the strongest-spider guide explains what that goal means.

Where the comparison lives: the Bug Tree

The in-game Bug Tree has two tabs: Evolution and Robux Spiders. The Evolution tab holds the free progression, with tiers labelled T1 through T6 as of late October 2026. Forms you have not reached display as "???" until you unlock them, and your next step is marked "NEXT" — one player's tree showed the Black Widow as NEXT at Lv 43, for example.

One caveat matters before any comparison: sources disagree about the top of the tree. A wiki that went through the tree in late October 2026 read it as topping out at Tier 6, matching the "Buy Next Spider [T6]" Robux product, while a detailed catalog lists a Tier 7 (the Giant Huntsman). The two do not reconcile, so treat the very top of the tree as unconfirmed and trust what your own tab shows: while the top of your tab still reads "???", the catalog's named upper tiers — including the Giant Huntsman — are not confirmed by what your game shows you.

The free spider ladder: costs, level gates and lineage

Every player starts on the spider line. The game began as a spider game — its original pitch was "Become the strongest Spider!" — and the most specific documented start is a Spiderling that becomes the Garden Spider (Tier 1) at Lv 12; another catalog simply says every bug starts as a Garden Spider. Either way, the first branch opens right after: the tier-2 choice at Level 12 for 200 coins.

From there, a detailed tree catalog dated to game version 19 (November 1, 2026) lists the spider column's gates like this:

Spider ladder: documented costs, level gates and lineage

Spider ladder: documented costs, level gates and lineage

Form	Tier	Coins	Level gate	Grows up at	Evolves from
Jumping Spider	3	450	Lv 15	28	Grasshopper
Wolf Spider	4	1,800	Lv 28	40	Jumping Spider
Tarantula	5	12,000	Lv 40	55	Wolf Spider
Brood Mother	6	35,000	Lv 55	80	Tarantula
Giant Huntsman	7	75,000	Lv 80	105	Brood Mother

Two patterns in that table are the real comparison. First, the price multiplies with every tier, from 450 coins at tier 3 to 75,000 at tier 7. Second, the gates chain: each spider grows up at the level where the next gate opens — the Jumping Spider is grown up at 28, which is exactly where the Wolf Spider unlocks, and so on up to the Giant Huntsman at 105. Every bug grows through its own stages by level (egg, young and adult, with a pupa or cocoon stage for flies and butterflies), and higher tiers grow up later — a tier-2 bug is grown up at 15, a tier-7 bug at 105 — so each new spider is a longer growth project than the last.

These figures come from one third-party listing, so treat them as a map rather than a promise — your own Bug Tree shows the real requirement, and the evolution requirements guide gathers what you need before you can evolve.

What the table deliberately does not include is stats. Per-form stat tables for the free ladder are not published; the closest documented data points are player sightings, not base stats: a Wolf Spider seen at Lv 53 with 966 HP, a Black Widow at Lv 43, and a Garden Spider still in a players list at Lv 48. Sightings like those show the forms in use well past their adult levels — they are not a stat comparison.

The first fork: Housefly or Grasshopper

At Level 12 with 200 coins, the Bug Tree's second tier offers the first real choice, and it decides which tier-3 spider you can reach. One guide frames the fork as the flying Housefly against the ground Grasshopper, both unlocking at Level 12 for 200 coins:

Housefly vs Grasshopper at Level 12

Housefly vs Grasshopper at Level 12

What to compare	Housefly	Grasshopper
Mobility	Flies — fly forms get on-screen FLY/DOWN buttons and a Proboscis ability	Ground only; one guide credits it with better raw ground movement and on-paper stat bonuses
Escape option	Go vertical, wait out the combat timer and leave the server without dropping progress when a higher-level player locks on	None documented — a ground-only bug locked in combat can only fight or die
Where it fits	Public servers, where PvP is fully active and high-level players hunt low-level ones — the guide's recommended pick for that reason	Private-server grinding, where that pressure does not exist and its on-paper stats are viable
Spider it leads to	Black Widow — a tier-3 spider for 450 coins	Jumping Spider — a tier-3 spider for 450 coins and the entry to the spider ladder

The Housefly recommendation is that guide's opinion, not a game rule — but the underlying capability split in the table is documented. For the spider comparison on this page, the flip side is the key fact: no free spider form is documented as able to fly.

Two things to keep straight. Picking the Housefly does not take you off spiders — the Black Widow waiting at tier 3 is a spider, and both tier-3 spiders cost the same 450 coins. What the fork does change is the road onward: the documented route to the Wolf Spider and the ladder above runs through the Jumping Spider, on the Grasshopper branch. And one figure here is genuinely unsettled: the tree catalog lists the Black Widow at 450 coins and Lv 15, while another guide says Level 20+ for the same 450 coins. Your own tree's NEXT entry is the authority on the level. Still working through those first sessions? The progression guide covers what to do after you hatch.

The Jumping Spider junction: climb the ladder or switch to flies

The Jumping Spider is where a spider run gets its next real decision. At Lv 28 and 1,800 coins, two tier-4 options unlock from it: the Wolf Spider, which continues the spider ladder, and the Mosquito, which moves you into the fly line — the forms with the FLY/DOWN buttons and the aerial escape. Same price, same gate, so it is a straight preference call between climbing toward the Giant Huntsman and owning the sky.

Stay on spiders and the ladder from there is the table above: Tarantula at 12,000 coins (Lv 40), Brood Mother at 35,000 (Lv 55) and Giant Huntsman at 75,000 (Lv 80), each unlocking when the previous form reaches its adult level. Size cuts both ways on that climb: the bigger a bug grows, the stronger it is, but size comes with a movement penalty. For actually hitting those level and coin gates, the challenges guide covers quests, bosses and level goals, the evolve-faster guide covers shortening the gates themselves, and the fastest-way-to-grow guide covers which forms and mutation to target.

Paying instead of grinding

If the ladder's coin totals do not appeal, the Bug Tree's second tab sells spiders directly. As read in late October 2026, the Robux Spiders tab holds five spiders, whose stats that source explicitly leaves "to be verified":

A second catalog overlaps on two of them and supplies the only published stat lines for purchasable spiders: the Emerald Jumper, a spider with 270 health and 23 bite at 49 Robux, and the Obsidian Widow, with 320 health and 26 bite at 69 Robux. The listings agree on an Emerald-named spider at 49 and on the Obsidian Widow at 69, but not on the Emerald's exact name, and the rest of the tab's stats are unconfirmed — so if a specific spider's numbers matter to your choice, check its card in the shop before spending.

There is also a spider outside the main ladder entirely. The Prehistoric Pack (299 Robux, or 250,000 coins) unlocks the prehistoric line, starting with the Trilobite, and each next prehistoric bug costs coins. The line's spider is the Mongolarachne — listed at 360 health, 26 bite, 5,000 coins, grown up at 30. That makes it a documented spider with published stats, but the pack's entry cost comes first, so it is a separate decision from the ladder comparisons above.

Before you commit

Checklist

• Read your own tree before saving toward a figure

  The Evolution tab marks your actual next step as NEXT and hides unreached tiers as ???. The listings disagree on the tree's very top and on the Black Widow's level gate, so treat outside figures as a map and your tree as the authority.

• Compare decision costs, not tier numbers

  The documented differences between the free spiders are coins, level gates and lineage, and each form's grown-up level doubles as the next gate. No per-form stat table for the free ladder is published.

• Match the branch to where you play

  Flight is the documented escape on public servers, and it belongs to the fly forms. Spiders are the ground commitment: once combat locks on, the documented options are fight or die. On private servers that pressure does not exist.

• Treat published stats as partial

  Only the Emerald Jumper, Obsidian Widow and Mongolarachne have documented stat lines, plus a single Wolf Spider sighting at 966 HP. Do not project those onto the free ladder.