RuneLink TD

Fire, Water, Wind, Earth. Place runes of the four elements on the grid and link the neighbours together.

RuneLink TD is a wave defense game where placement is the strategy. What matters is not how strong a single rune is, but what you put next to it and which link it forms.

■ Link (Resonance) system
Link 2 to 4 adjacent runes to trigger a resonance.
· Same-element links - extended range, permanent wide coverage
· Mixed-element links - powerful area blasts like Storm Flame, Earth Crack, Freeze and Lava
Links are decided by the shape of your layout, so a single tile changes your entire build.

■ Elemental matchups: x2.0 / x0.3
Twice the damage against a weak element, a third of it against a strong one. Each stage skews toward specific enemy elements, so you rebuild for every stage. Place runes at random and your damage drops to a third.

■ Arcane Rune - zero damage, pure control
Long-press a rune to turn it into an Arcane Rune. It deals no damage, but applies Disarm, Slow, Weaken or Stun over an area. It even breaks through invulnerability and status immunity, making it the key to tough bosses and special enemies.

■ 100 stages across 10 chapters
Every chapter brings new paths and new enemies: self-healing, splitting, summoning, frost shells, bombers, berserkers, spores, divers, shields, revival, curses, phantoms, wards - over 20 special abilities, plus 100 unique bosses.

■ Merging and permanent upgrades
Stack identical runes to merge them up to level 5, or raise your purchase level to place higher grade runes right away. Cores earned from clears can be invested freely across 8 upgrade trees, including attack, speed, range and starting gold.

■ 40 achievements, 40 tiers each
Perfect clears, combos and resonances, boss hunting, and long-term progress. Four tracks of achievements run up to 40 tiers each, so cores keep coming the more you play.

■ Three difficulties, three separate games
Switch between Easy, Normal and Hard at any time in the settings. Progress and upgrades are saved separately per difficulty, so finishing one leaves a fresh start waiting on another.

■ New to tower defense? No problem
A hands-on 10-wave tutorial runs on a real map and walks you through placing, matchups, merging, linking and Arcane Runes - learned by doing, not by reading.

■ Light and offline
· No sign-up, no account linking
· Playable without an internet connection
· Progress is stored on your device only
· 8 languages: Korean, English, Japanese, Chinese, Spanish, German, French, Vietnamese

■ Made for you if
· You enjoy puzzling over tower placement
· You want short sessions you can pick up and put down
· You would rather build the board yourself than watch an auto-battle

Free to play with ads. The rewarded ad for extra cores only plays when you tap it yourself.

Place your first rune now.