Alpha Planet TD is a 3D tower defense game set on small spherical planets. Drop your bunker, build industrial towers along the winding route, and stop the Riftborn before they reach the core.
Coming to Android and iOS · Landscape only · Free to play
The enemy path winds around a rotating planet. Spin the world with one finger, place towers with the other, and watch flanks you cannot see yet.
Pulse lasers, cryo, EMP, gravity wells, nanites, orbital strikes, and more. Every tower has upgrade tiers, sockets, and a damage type the Riftborn answer.
Runners, shields, armour, swarms, splitters, regenerators, phasewalkers, carriers, and disruptors. Each family teaches a counter and punishes one-note builds.
Every run is fully deterministic and server-verified. Same commands, same result: leaderboards measure decisions, not luck or lag.
Bring a Commander with owned and equipped effects, time Combat Perks like Orbital Strike and Time Dilation, and grow a permanent Stat Tree.
Progression is server-owned. Restore your account on any device; currency and rewards always arrive from the server, never from local saves.
Human carrier fleets and bunker crews reclaiming colonies planet by planet. Scrappy, overloaded, dry humor under pressure.
A hostile planet ecology that fights like a military force once the Alpha Core wakes up, studying your builds and escalating wave composition.
Learn the route, live placement, and first upgrades - then break the first defensive ring in the opening public server race.
The carrier hears trapped human crews beneath the Rift. Survival turns into a push deeper.
New enemy roles punish one-note builds; paired enemy commanders force better perk timing and loadout planning.
Permanent progression comes to a head against a raid-boss-scale core - the launch campaign capstone and a server-first prestige moment.
New planet sectors, enemy families, commanders, tower branches, and seasonal modifiers keep the front moving.
Concept frames shown below; real gameplay captures replace them as missions come online.
Alpha Planet TD is a 3D sci-fi tower defense game for Android and iOS. Each mission drops your bunker onto a tiny spherical planet inside the Alpha Rift; you build and upgrade towers while waves of Riftborn creatures rush the bunker along a winding route.
Alpha Planet TD is built for Android and iOS phones and tablets, and it is landscape-only by design so the whole planet stays readable during combat.
Each Riftborn family teaches a counter: runners punish slow builds, shieldbearers resist until shields break, armoured bulwarks blunt physical damage, swarmers and splitters flood the route, regenerators outlast low damage, phasewalkers slip past bursts, and carriers and disruptors protect the rest. The wiki lists every enemy with stats and weaknesses.
Progression, currency, purchases, and leaderboards are server-authoritative. Your account lives on Alpha Planet TD servers, so progress restores across devices and competitive results stay fair.
The public wiki at alphaplanet.dev/wiki/ is generated from the same validated data files the game uses, covering towers, enemies, statuses, Combat Perks, Commanders, the Stat Tree, progression, and the damage type matrix.