Catenoid - Wormhole Chess is a strategy game for PC that reimagines classic chess on a non-Euclidean board. Two standard 8x8 chessboards connect at their centers through a catenoid wormhole, forming a single 144-cell battlefield. Pieces move according to familiar chess rules yet travel between the linked surfaces, creating new lines of attack and defense that span both dimensions.
Gameplay
The core loop centers on standard chess movement adapted to the connected boards. Rooks, bishops, and queens continue their paths through the central wormhole and emerge on the opposite board without interruption. This geometry allows a single move to originate on one surface and conclude on the other, opening fresh tactical options such as pinning a king across dimensions or forking multiple pieces from unexpected angles.
Nexus points, the pentagonal cells around each wormhole, function as chokepoints. Sliding pieces reach these tiles but cannot pass through them in one turn, forcing players to manage control of these bottlenecks carefully. Pawns gain flexibility when approaching a wormhole, choosing among nexus paths, while those moving away must follow their file straight ahead. Promotion occurs on any rank 1 or 8 square across either board, rewarding deep incursions into enemy territory regardless of dimension.
Castling, en passant, and all other standard chess rules remain in place, adjusted only for the wormhole topology. The result preserves the familiar decision-making of chess while introducing geometry that alters piece safety and attack ranges in every position.
Game Modes
Sandbox mode lets players place pieces freely on the connected boards to test movement paths and explore interactions across the wormhole. This setup supports experimentation without the pressure of a full match.
Multiplayer options include online player-versus-player matches through quickplay matchmaking and direct invites. Online co-op play is also supported, allowing collaborative sessions against shared opposition. These modes emphasize direct competition and coordination using the expanded board geometry.
Strategic Depth
Players who understand standard chess recognize most rules immediately, yet the altered board demands constant reevaluation of positions. Safe squares on a conventional board can become exposed once lines extend through the wormhole. Attacks arrive from angles impossible on a flat grid, and the center transforms from a contested zone into an active portal that reshapes entire games.
Control of the nexus points often dictates the flow, as blocking these areas limits opponent mobility while preserving your own options. New mating patterns emerge from cross-board combinations, rewarding foresight about how pieces interact between surfaces. The game rewards those who adapt chess intuition to the non-Euclidean layout without requiring mastery of entirely new movement rules.
Is It Worth Playing?
Catenoid suits chess enthusiasts seeking a fresh challenge that builds directly on existing knowledge. The single-player sandbox provides a low-pressure way to learn the geometry, while multiplayer features support competitive or cooperative sessions once players feel ready. With a planned release in late August 2026 and no reviews available yet, the title remains untested in practice, but its faithful adherence to chess fundamentals combined with the novel board suggests strong appeal for variant fans. Those comfortable with standard chess rules will find the learning curve gentle yet the strategic possibilities extensive.
