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Asset pack · · 5 min read

Robot Series Packs 13–18: Turrets, War Vehicles, Elementals, Heroes II, Grunts and Town NPCs

Turret, tank, hero and NPC sprites for isometric games: 18 animated pixel art robots in 8 directions, with sprite sheets, Godot 4 notes and free samples.

Robot Series Pack 13: Turrets cover with a gatling, a mortar and a tesla turret on an isometric floor
Walker-Bot firing its rocket salvo in all 8 isometric directions
Pack 14: Walker-Bot salvo in 8 directions.
Brawler-Bot ground slam attack in all 8 isometric directions
Pack 16: Brawler-Bot slam in 8 directions.
Merchant-Bot sell animation in all 8 isometric directions
Pack 18: Merchant-Bot selling in 8 directions.

Six packs, one cast

Packs 13 to 18 add 18 characters to the Robot Series and fill the roles a game needs beyond the first enemies: turrets for tower defense, war vehicles, elemental enemies, playable heroes, small grunts to use in squads and friendly NPCs for towns.

Every character is drawn in all 8 isometric directions on a 64 px cell, with the same palette, light from the upper left, 1 px outline and 2:1 scale as the rest of the series. The pivot sits at the same ground point (32, 53) in every sheet, so turrets, tanks, heroes and shopkeepers stand on the same tiles. Enemies have a pink-red eye, friendly robots a cyan one.

Pack 13: Turrets

Three enemy turret sprites for tower defense, shooter and strategy games. Each turret has 5 animations (idle, deploy, attack, hit and death) in 8 directions, and the direction is the aim: show the row closest to the target. 1,024 frames in total. Free sample: Gatling-Turret, with idle and fire in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-13-turrets

  • Gatling-Turret: an armoured bunker with twin five-barrel rotary guns, tracer rounds and flying casings. Its fire animation loops for as long as it shoots.
  • Mortar-Turret: a dug-in mound with a fat mortar tube. The shell leaves the tube on frame 3 and hits the ground on frame 9.
  • Tesla-Turret: a coil tower that calls down a storm of lightning bolts, which strike on frames 5 to 7.
Robot Series Pack 13: Turrets lineup with a gatling, a mortar and a tesla turret
Pack 13: Gatling-Turret, Mortar-Turret and Tesla-Turret.

Pack 14: War Vehicles

Three enemy vehicles for isometric strategy, tower defense, shooter and RPG games. Each one has 5 animations (idle, movement, attack, hit and death) in 8 directions: 1,008 frames in total. Free sample: Hover-Bike, with idle and fly in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-14-war-vehicles

  • Tank-Bot: a tracked robot tank whose long cannon fires with a muzzle flash, recoil, a shell and a smoke ring.
  • Walker-Bot: a heavy four-legged assault walker that fires a salvo of 4 rockets from the missile pods on its back.
  • Hover-Bike: a riderless raider bike on hover skids with twin blasters that fire pink plasma bolts.
Robot Series Pack 14: War Vehicles lineup with a tank, a four-legged walker and a hover bike
Pack 14: Tank-Bot, Walker-Bot and Hover-Bike.

Pack 15: Elementals

Fire, ice and lightning enemies for isometric RPG, tower defense, strategy and shooter games. Each robot has 5 animations (idle, movement, attack, hit and death) in 8 directions: 1,056 frames in total. Free sample: Cryo-Bot, with idle and drift in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-15-elementals

  • Pyro-Bot: a walking furnace with burning chimneys that attacks with a flamethrower jet.
  • Cryo-Bot: a hovering frost core with orbiting crystals that raises ice spikes from the ground.
  • Volt-Bot: a pogo robot on a coil spring that slams down and sends out an electric shockwave ring.
Robot Series Pack 15: Elementals lineup with fire, ice and lightning robots
Pack 15: Pyro-Bot, Cryo-Bot and Volt-Bot.

Pack 16: Heroes II

Three playable hero robots for action RPGs, roguelikes, twin-stick shooters and strategy games. Each hero has a full move set of 7 animations (idle, run, two attacks, a dash, hit and death) in 8 directions: 1,488 frames in total. Free sample: Brawler-Bot, with idle and run in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-16-heroes-ii

  • Brawler-Bot: a street boxer with two huge gauntlets. A jab-and-cross punch, a ground slam with a shockwave and a shoulder-charge dash.
  • Ranger-Bot: a jetpack gunslinger with a big blaster. Shoot, a charged beam and a jetpack boost.
  • Mage-Bot: a floating tech-mage with a staff and an orb. Bolt, a nova ring of energy and a blink teleport.
Robot Series Pack 16: Heroes II lineup with a boxer, a gunslinger and a mage robot
Pack 16: Brawler-Bot, Ranger-Bot and Mage-Bot.

Pack 17: Grunts

Small enemy robots made to be used in numbers: squads, packs and swarms for isometric RPG, roguelike, shooter and tower defense games. Each one has 5 animations (idle, movement, attack, hit and death) in 8 directions: 1,008 frames in total. Free sample: Trooper-Bot, with idle and walk in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-17-grunts

  • Trooper-Bot: rifle infantry with a helmet and a backpack radio that fires a 3-round burst.
  • Hopper-Bot: a robot flea with big grasshopper legs that pounces and bites.
  • Wasp-Drone: a flying robot wasp with a striped abdomen that dives in with its brass stinger.
Robot Series Pack 17: Grunts lineup with a trooper, a robot flea and a robot wasp
Pack 17: Trooper-Bot, Hopper-Bot and Wasp-Drone.

Pack 18: Town NPCs

Friendly NPC sprites for the towns, camps and taverns of isometric RPGs and adventure games. Each NPC has 5 animations (idle, walk, talk, a job animation and greet) in 8 directions, with no hit or death: 1,056 frames in total. Free sample: Merchant-Bot, with idle and walk in 8 directions.

Get it on itch.io: mekai-games.itch.io/robot-series-pack-18-town-npcs

  • Merchant-Bot: a travelling trader carrying a backpack stall with crates, an awning and a lantern, who holds out a potion to sell.
  • Elder-Bot: an old quest-giver with a long beard, a cane and a cape, who opens a holographic scroll with a quest marker.
  • Barkeep-Bot: a tavern keeper built from a barrel, who fills a mug from the tap on its belly.
Robot Series Pack 18: Town NPCs lineup with a merchant, an elder and a barkeep robot
Pack 18: Merchant-Bot, Elder-Bot and Barkeep-Bot.

What is in every download

Each robot comes as an Aseprite source with one tag per animation and direction, sprite sheets per animation with and without the ground shadow, the shadow on its own, every frame as a single PNG, GIF previews and a JSON file with frame counts, per-frame timings, loop flags and the pivot. The README has import notes for Godot 4 (AnimatedSprite2D and SpriteFrames, one row per direction) and Unity, plus the ground speed per frame for every movement animation, so feet do not slide over your tiles. The sheets work in GameMaker and any other engine that reads PNG sprite sheets.

On each pack page the sample character is free, the full pack costs €2.99, and €4.99 also unlocks the Blender source files with the 3D models and every animation. All 21 packs of the series are in the Robot Series bundle for €34.99: itch.io/s/204631

  • Commercial and non-commercial games, as many projects as you like
  • Edit, recolour and adapt the sprites
  • No reselling or redistribution of the assets
  • No NFTs and no machine-learning training