All 31 Skills in TUSG.io
Every active skill in the game — stats, cooldowns and max-level effects, generated from live game data.
TUSG.io is a survival io game where your build matters: 31 active skills across 11 categories, leveled 1-10 with learning points (LP). Five of them — Run, Single Shot, Mass Eject, Burning Aura and Emergency Heal — are free from your very first game.
Which skills should you unlock first? The consensus opener: a mobility pick (Dash or Teleport), then upgrade Emergency Heal, then a projectile like Frost Shot for chase power. See the beginner’s guide for the full opening build.
Speed skills
| Skill | What it does | Cooldown | At max level |
|---|
| Dash | Increases movement speed | 30s | +175% Speed |
| RunFREE | Explosive short burst of speed | 30s | +125% Speed |
| Marathon | Sustained high-speed movement | 30s | +100% Speed |
| Teleport | Instantly teleport a short distance toward the cursor | 30s | 800 Range |
Buff skills
| Skill | What it does | Cooldown | At max level |
|---|
| Gigantify | Temporarily increases mass of all cells | 30s | +25% Mass |
Defensive skills
| Skill | What it does | Cooldown | At max level |
|---|
| Knockback | Push all nearby enemy cells away from each of your cells | 20s | 600 Range |
| Hide | Become invisible to other players. Moving too far breaks the effect. | 30s | 5.0s · Invisible |
Eject skills
| Skill | What it does | Cooldown | At max level |
|---|
| Mass EjectFREE | Hold to charge, release to fire a massive projectile | 20s | 20% Mass |
Projectile skills
| Skill | What it does | Cooldown | At max level |
|---|
| Single ShotFREE | Fires a ghost projectile that travels to max range | 0.25s | 5 Mass |
| Frost Shot | Fires an ice projectile that slows the target | 5s | 15 Mass · Slow 3s |
| Poison Shot | Fires a toxic projectile that poisons the target | 5s | 8 Mass · Poison 5s |
| Stun Shot | Fires a shocking projectile that roots the target | 5s | 15 Mass · Root 2s |
| Flame Shot | Fires a flaming projectile that burns the target | 5s | 28 Mass · Burn 3s |
Aura skills
| Skill | What it does | Cooldown | At max level |
|---|
| Reflect Damage | Negates all incoming damage and reflects it back to the attacker | 30s | 5.0s · 100% Reflect |
| Stone Skin | Reduces all incoming damage for a duration | 45s | 10s · -80% Damage |
| Burning AuraFREE | Burns nearby players and NPCs with fire damage | 30s | 5s · 150 DPS |
| Frost Aura | Slows any player that damages you while active | 30s | 10s · Slow 3s |
| Chainsaw | Grinds through destructible terrain and inflicts low damage to nearby enemies | 30s | 10s · 30 DPS |
| Grenade King | Drops grenade cooldown to 0.2s while active. | 60s | 10s · grenade CD 0.2s |
| Rocket King | Drops rocket cooldown to 0.5s while active. | 60s | 10s · rocket CD 0.5s |
Healing skills
| Skill | What it does | Cooldown | At max level |
|---|
| Emergency HealFREE | Instantly heals all cells for a percentage of max HP | 45s | +20% Max HP |
| Healing Aura | Heals all cells over time | 40s | 7s · 2.50% HP/tick |
Area skills
| Skill | What it does | Cooldown | At max level |
|---|
| Frozen Circle | Creates an icy zone that slows and damages enemies inside | 30s | 10s · 50 DPS · Slow |
| Flame Area | Creates a burning zone that scorches enemies inside | 30s | 8s · 80 DPS · Burn |
| Repulsion Field | Creates a force field that pushes enemies away from its center | 25s | 6s · 40 Push |
| Mine | Drops a mine that detonates on enemy contact for a huge AoE blast | 30s | 10s · 5000 dmg |
Cure skills
| Skill | What it does | Cooldown | At max level |
|---|
| Cleanse | Instantly removes all roots and slows | 40s | Remove CC · 20s CD |
| Purify | Instantly removes all poison and burn effects | 40s | Remove DoTs · 20s CD |
Illusion skills
| Skill | What it does | Cooldown | At max level |
|---|
| Body Double | Create a decoy replica of your cells that moves in your last direction. | 25s | 10s · Decoy |
Terrain skills
| Skill | What it does | Cooldown | At max level |
|---|
| Magma Wall | Conjures a 10-second magma wall between you and your cursor that burns enemies on contact | 30s | 10s · 7.50 dmg/tick |
| Stone Wall | Conjures a stone wall between you and your cursor — blocks but does no damage. Tougher to carve through than magma. Duration scales 2-20s with level | 30s | 20s · blocks (non-damaging) |
Play TUSG.io free — the browser survival io game with skills, bosses, loot and trading. No download, no install:
jump into the arena now.