Portal Gun & Chambers

V6: Test Chambers (everything since v5.4)

• The mod is renamed Portal: Test Chambers.
• Test chamber dungeons rebuilt in the Portal 2 style. Each dungeon has 10 to 35 rooms picked from 90 hand-built puzzle chambers. Every room has one intended solution.
• The dungeon loops back, so the last room opens into the lobby. Entrances use an elevator and are placed so they never cut into villages or other structures.
• New chamber look: white portal panels, dark metal panels, light strips, grating, chamber glass, observation glass, chamber signs and antlines.
• New test elements: Edgeless Safety Cube, Discouragement Redirection Cube, Cube Dropper, Super Button, Pedestal Button, Material Emancipation Grill, Thermal Discouragement Beam, Laser Catcher, Laser Relay, Laser Field, Hard Light Bridge, Excursion Funnel, Repulsion, Propulsion and Conversion Gel, Cleansing Water, Flip Panel, Angled Panel, Piston Platform, Crusher and Toxic Goo.
• Portals open with a flaming rim and shrink when closed. A sealed chamber door clears portals behind you.
• Cubes can be carried through portals and grabbed through an Excursion Funnel.
• Laser beams burn but no longer push you, so they never block your way to a panel.
• Many puzzle fixes from playtesting, including rooms with no way back and rooms where gel made a cube impossible to carry.

Grab key is G by default.