Flock!: UFO Herding, Physics Puzzles, and a Level Editor on Windows (Steam Product Date 2009)

Piloting the UFO: Herding Animals to the Motherflocker

In Flock!, you pilot a UFO through bright, pastoral landscapes with a single central task: herd animal life back to the Motherflocker. The game is described as a sandbox puzzle in which a physics engine drives many of the elements around you. Because animals react both to each other and to hazardous surroundings, they can be poked, prodded, and otherwise manipulated rather than simply pushed in a straight line. Steering a group toward the Motherflocker therefore means working with the herd's reactions as terrain and hazards shift around them.

A time limit frames every herding attempt: the herd must be delivered to the Motherflocker before time runs out. The documented actions feed into that deadline directly. You can pick up wood to form bridges, move boulders to create obstructions, and flatten fields into pathways. Those changes redirect animals and open routes, while animals reacting to hazards adds risk to any arrangement you build. The rules interact tightly: bridge-building and obstruction placement alter where the herd can move, hazard reactions shape how it responds, and the clock keeps the whole sandbox under pressure. The Steam product date for this listing is 2009.

Physics Puzzle Toolkit: Bridges, Boulders, and Flattened Fields

The toolbox in Flock! rests on a physics engine that governs animal behavior, object interactions, and environmental manipulation. Wood can be picked up and assembled into bridges, boulders can be shifted to create obstructions, and open fields can be flattened into pathways. Each of these actions is direct control over environmental objects rather than an abstract menu command: the wood, stones, and ground are the same elements the animals collide with and navigate around. Because the engine drives those elements, a bridge or a boulder does not merely decorate the pasture; it changes the physical space the herd must cross.

The terrain itself is part of the puzzle toolkit, since flattening fields counts as altering the ground to open new pathways and solutions. A flattened strip gives the herd a route that did not exist before, while a relocated boulder narrows or blocks another route, letting you steer movement through the landscape instead of only pushing animals with the UFO. These modifications are aimed at delivering the herd to the Motherflocker before time runs out, so every bridge and obstruction is a timed investment. The Steam product date for this listing is 2009.

Fifty-Plus Pastoral Puzzles and Hidden Collectibles

Flock! spreads its herding work across more than fifty pastoral puzzle challenges, and the levels grow more complex as you go. The surroundings themselves are built to be handled: bright pastoral environments carry interactive hazards and scenic details, so the spaces the herd must cross are never plain corridors. Wood, boulders, and open fields sit among those details, and the physics engine makes them part of the same terrain the animals react to. A level's challenge comes from how those pieces and the herd's reactions combine.

Beyond the main task of delivering animals, each level hides fun surprises to find, including secret collectibles and upgrades. These rewards sit away from the straightforward herding line, so they reward combing the scenery while the clock is running rather than only steering the herd straight to the Motherflocker. The whimsical art style, with vibrant colors, distinct textures, and dynamic lighting, gives the pastures a busy look that suits searching. The Steam product date for this listing is 2009, a store record rather than an original release date.

Two-Player Co-op and a Share-Your-Own-Levels Editor

A second player can join on the same machine for two-player local co-op, splitting the herding work across shared challenges. Both players operate within the same physics-driven pastures, where wood becomes bridges, boulders become obstructions, and flattened fields become new pathways, all aimed at delivering animals to the Motherflocker before time expires. Because the animals react to one another and to their hazardous surroundings, coordination matters: one player can reshape the terrain while the other manages the herd's movement through the altered space. The Steam product date for this listing is 2009.

A built-in level editor lets players design their own puzzles, then share those creations online and rate them. User-created content extends the same challenge structure found in the main levels: herding animals to the Motherflocker under time pressure, with wood, boulders, flattened fields, and physics interactions available for authoring. Sharing and rating turn the editor into a two-way exchange, so custom puzzles can circulate among players rather than staying local. The Steam product date for this listing is 2009, and it is a store record rather than an original release date.

First published Oct 22, 2026.