Move: Use W to move forward, S to go backwards, and move side to side using the A and D Keys. Alternatively, you can use the arrow keys.
Sprint: Holding Shift on the keyboard will cause your Warframe to sprint.
Jump: Press Space on the keyboard to jump.
Crouch: Hold CTRL on the keyboard to crouch. Press V to toggle between crouching/standing.
Shoot: You can shoot by left-clicking with the mouse.
Aim: Zoom in and aim with your weapon by right-clicking the mouse.
Marker: You can place a marker for other players to follow by pressing the G key.
Switch Weapon: Switch between your secondary and primary weapons by pressing the F key. Hold it down to equip your melee weapon for advanced moves.
Melee: Use your Melee Weapon by pressing the E key.
Use Ability: You can activate your currently selected ability with MOUSE3. You can also cast a specific ability by pressing either the 1, 2, 3 or 4 key.
Switch Selected Ability: Use the mouse wheel to cycle through the currently selected ability.
Context Action: When you see the prompt for a context action appear, you can perform it by pressing the X key.
Chat: You can call up the chat window during a mission by pressing T.
PC GAMEPAD CONTROLS
1: Use the left joystick to move your Warframe.
2: You can toggle sprinting by holding down the left joystick.
3: The camera is controlled by moving the right joystick.
5: Pressing the A button will cause your Warframe to jump.
6: Pressing the B button will perform a quick melee attack. When in a melee stance B can be used to start melee combos.
7: Press X to reload your currently equipped weapon and perform context actions, such as opening storage lockers or reviving players.
8: Press the Y button to switch between your primary and secondary weapons. Hold it down to equip your melee weapon.
9: Left/Right on the D-pad will cycle through Warframe Powers. Press Up on the D-pad to create a Waypoint marker. Press Down on the D-pad to cycle through your emote and inventory.
10: Press Left Bumper to crouch when standing still. Pressing when walking will cause you to roll, and holding Left Bumper while running will let you slide.
11: Holding Left Trigger with a Primary or Secondary weapon will aim down sights. Holding Left Trigger with a Melee weapon will activate channeling.
12: Pressing Right Bumper will open the Power Menu.
13: Pressing Right Trigger will fire your current Primary or Secondary weapon, or block attacks when using a melee weapon.