Low-poly Doctor Siphon with green talons in a stormy temple next to a glowing pylon
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About SIPHON: Hero Harvest, the 3D adventure where the villain raids hero temples

from the creative mind of Jacob Bruley

Powerbound Games logo: an eagle talon gripping a green energy orb on a shield

A Powerbound Games production

Hero Harvest takes Doctor Siphon into 3D. It's built in the style of classic Nintendo 64 adventures: chunky low-poly worlds, foggy temples, puzzles to solve and a boss waiting at the end of every dungeon.

Play Hero Harvest

The premise

Each of the league's heroes guards a temple. Doctor Siphon intends to break into every one of them. Fight through the traps and guardians, solve the temple's puzzle, defeat the hero waiting inside and drain their power. When eight temples have fallen, Paragon is the only one left.

Steal a power, open the next temple

  • Every hero you defeat gives Doctor Siphon their power, and you keep it for the rest of the adventure.
  • Like a Zelda dungeon, each temple is built around the power you took in the one before it. You can't get through Skyhawk's Aerie without Captain Bolt's Lightning Dash.
  • The temples are played in order, and each one is harder than the last.
  • Your progress saves in your browser.

Temple 1: The Storm Temple

Captain Bolt's temple sits above a storm-filled abyss. Cross the bridge of floating platforms, survive the lightning drones and the electrified floors, and light all three storm pylons to open the sealed door. Inside the arena, Bolt is hard to hit while he moves. Bait his dash into one of the pillars to stun him, then strike. He speeds up at two-thirds health and gets faster again at one-third, so jump his shockwaves. Win, and his Lightning Dash is yours.

The Storm Temple is always free to play.

The temples

Captain Bolt

Temple 1

The Storm Temple

Guarded by Captain Bolt

Light the three storm pylons to open the sealed door.

Power you steal: Lightning Dash

Skyhawk

Temple 2

Skyhawk's Aerie

Guarded by Skyhawk

Sky bridges with gaps too wide to jump. Dash across.

Needs: Lightning Dash

Power you steal: Wind Step

Frostbyte

Temple 3

The Glacier Vault

Guarded by Frostbyte

Ice cliffs too tall for one jump. Kick off the air to climb.

Needs: Wind Step

Power you steal: Frost Lance

Blaze

Temple 4

Blaze's Forge

Guarded by Blaze

Rivers of lava under a low ceiling. Freeze them to cross.

Needs: Frost Lance

Power you steal: Hellfire Bolt

Wraith

Temple 5

The Shadow Crypt

Guarded by Wraith

Halls choked with webs and cold braziers. Burn and light them.

Needs: Hellfire Bolt

Power you steal: Shadow Step

Vitalis

Temple 6

The Living Garden

Guarded by Vitalis

Walls of living light. Step through them like a shadow.

Needs: Shadow Step

Power you steal: Life Leech

Titan

Temple 7

Titan's Quarry

Guarded by Titan

Gates choked by living roots. Drain the life out of them.

Needs: Life Leech

Power you steal: Tectonic Slam

Aegis

Temple 8

The Shield Bastion

Guarded by Aegis

Cracked stone barricades. Smash them from above.

Needs: Tectonic Slam

Power you steal: Aegis Barrier

The final temple

Paragon

Temple 9

Paragon's Citadel

Guarded by Paragon

Blinding sun lanes and every trick you've learned. The final temple.

Needs: Aegis Barrier

Power you steal: Every power, in one last fight

Paragon waits at the end of a citadel of blinding sun lanes. His fight has three stages, and he uses every power the other heroes had against you: dashes, dives, ice, fire, shadows, healing and a sweeping sun beam you can only stop with Aegis Barrier.

Controls

Play with a keyboard and mouse, a game controller, or the on-screen buttons on a phone or tablet. You can change the controller buttons under Controller settings on the title or pause screen.

Keyboard
MoveW A S D or arrow keys
Jump (Wind Step: jump again in midair)Space
Talon slash (Tectonic Slam: slash in midair)J or click
Lightning DashK or Shift
Frost Lance / Hellfire Bolt / Shadow StepU / I / O
Aegis BarrierHold L
Switch the selected powerTab
Turn the cameraQ / E or drag with the mouse
Camera behind SiphonC
PauseP or Esc
Full screenF
Controller
MoveLeft stick or D-pad
Turn the cameraRight stick, or LT / L2 and RT / R2
JumpA / ✕
Talon slashX / ▢
Lightning DashB / ◯
Use the selected powerY / △
Switch the selected powerBack / Share
Aegis Barrier (hold)RB / R1
Camera behind SiphonLB / L1
PauseStart / Options

On a touch screen, use the stick on the left to move, drag the screen to turn the camera, and use the Slash and Jump buttons on the right. Buttons for Dash, your selected power and the Barrier appear as you steal them.

Price

Captain Bolt's Storm Temple is free. The other eight temples, including the final battle with Paragon, are a one-time $1.99 unlock: no subscription and no account. Already bought it on another device? Use "Restore your unlock" with the email from your receipt. Got a passkey from a friend? Enter it on the unlock screen to play the full game free.

Ready to raid the Storm Temple?

There's nothing to download and no sign-up. It runs in your browser.

Play Hero Harvest