- **Open the Laboratory menu and click "Psychotropic Warfare."** Host a lobby,
invite a friend (or they join off your Steam profile), and the match starts
once you're both in. Friends-only, 2-slot lobbies over Steam.
- **Real towers, real enemies, real physics.** Versus runs the actual game on
the host — every tower, card, consumable, and enemy behaves exactly as it
does in solo. No simplified sim.
- **Offense is direct:** click one of the portals on your opponent's board to
send a wave of enemies through it. Each send costs more Gnosis than the last
(shared, escalating per match), and a bigger spend sends a nastier batch.
Sent enemies stream in through the portal you clicked.
- **Fair by construction:** both boards are generated from the same seed and
mirrored, so you and your opponent face identical terrain and waves.
- **First to leak loses.** Boards start at 100 HP; when one player's defense
breaks, the match ends.