Star Blaster is a fast arcade space shooter where your fighter fires automatically and your only job is positioning it correctly. Enemy ships stream down from the top of the screen in escalating waves, mixing fast, fragile scouts with tougher gunners that shoot back and heavy hulls that soak up several hits before breaking apart. You have three lives to start; losing one happens either by colliding with an enemy directly or by letting an enemy ship reach the bottom of the screen unopposed, and the run ends the moment your last life is gone. There's no final boss or fixed ending — the waves simply keep coming, faster and denser, for as long as you can survive them.
On mobile, drag anywhere on the screen and your ship eases smoothly toward your fingertip rather than snapping directly under it, which keeps fine adjustments from feeling twitchy during a crowded wave. On desktop, use the left and right arrow keys or A and D — there's no vertical movement, since your ship is fixed near the bottom of the playfield and combat is entirely about lane positioning left to right. Press P or Escape at any time to pause, and the speaker icon mutes the weapon and explosion sound effects. Your cannon fires on its own at a steady pace the entire time you're in play, so there's no separate fire button to manage.
Three kinds of enemy ships appear, and telling them apart at a glance matters. Scouts are the fastest and most common, dive down the screen quickly, and go down in a single hit. Gunners move a little slower, take two hits to destroy, and periodically fire a bullet straight down at your position, so they demand more respect than their modest speed suggests. Heavy hulls are the toughest ships in the game, moving the slowest but absorbing four hits before breaking apart, and they fire back just like gunners do. As waves progress, tougher ship types appear more often and the whole formation moves a little faster, so late-game waves demand much sharper reflexes than the opening minute.
Destroyed enemies occasionally drop a pickup, and heavier enemies are noticeably more likely to drop one than scouts are. A rapid-fire pickup roughly doubles how quickly your cannon fires, a triple-shot pickup switches you to a three-way spread that covers a wider arc in front of your ship, and a shield pickup adds a protective ring that absorbs exactly one hit before disappearing, stacking up to three rings at once. Rapid-fire and triple-shot both last eight seconds once picked up, and a timer bar along the bottom edge of the screen counts down the remaining duration so you always know how much longer the boost will last. Picking up a second copy of the same weapon boost simply refreshes its timer rather than stacking, so there's no benefit to grabbing duplicates back to back — but a shield pickup is always worth collecting since its stacks are separate from the weapon timer.
Scouts are worth 30 points each, gunners 60, and heavy hulls 120, so prioritizing the tougher ships when you have a choice pays off directly in score as well as in survivability. You also earn a lump-sum bonus scaled to the wave number every time a new wave begins, which means simply surviving longer compounds your score quickly even between individual kills. Picking up any power-up adds a small flat bonus on top of its gameplay effect, so there's rarely a reason to dodge one even if you don't strictly need it in the moment.
Because your ship fires automatically, the entire skill of Star Blaster comes down to where you choose to stand and when you choose to move — drifting to line up with a gunner or heavy hull before it gets a clean shot at you is usually worth more than trying to dodge its bullet after the fact. Try to clear scouts on sight rather than letting several pile up, since a handful of one-hit kills adds up to real score quickly and thins the screen out before the tougher ships arrive. When a triple-shot or rapid-fire pickup drops, it's often worth adjusting your position to grab it even mid-wave, since the temporary firepower boost pays for itself many times over against a heavy hull. Keep an eye on your shield count late in a run — three stacked shields effectively give you three extra lives against direct collisions, so it's worth being a little more aggressive about grabbing teal pickups than gold ones once you already have a healthy score built up.
Star Blaster plays almost identically on touch and keyboard, since both control schemes only ever move your ship left and right. On a touchscreen, the eased drag-follow smooths out small hand tremors so precise sidestepping between enemy bullets feels controlled rather than jittery. On desktop, holding a direction key gives you a fixed, predictable speed that makes it easy to plan a dodge a beat in advance rather than reacting at the last instant. Whichever you use, your score, the wave you reached, and your total kill count are recorded at the end of every run, and your best score is saved locally so each session gives you a clear number to chase.