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For related topics, see Chrono.

RA1 Gameicon The following is based on cut content and has not been confirmed by canon sources.

A Time Quake is an unfortunate side effect of the use of Chronosphere technology during the Second World War.


A time quake is an in-game cataclysm caused by usage of the Chronosphere, similar to the Chrono Vortex. Whenever a Chronosphere is used, there is a 20% chance[1] [2] a time quake will occur. An explosion is heard, and the game shakes[3].

The time quake functionality is also used for the MAD Tank's attack[4], while MAD tanks do varying damage based on unit type within a radius around the tank[5]. Time quakes can also be spawned in crates, but only if there are many units on the map[6].

Non-MAD tank related time quakes were removed at some point between the 0.09c beta and the final release[7].


  1. Bostic, Joe. HOUSE.CPP. Red Alert: Aftermath. “TimeQuake = Percent_Chance(Rule.QuakeChance * 100)”
  2. Bostic, Joe. RULES.CPP. Red Alert: Aftermath. “QuakeChance(".2")”
  3. Bostic, Joe. LOGIC.CPP. Red Alert: Aftermath. “if (TimeQuake) { Sound_Effect(VOC_KABOOM15); Shake_The_Screen(8); }”
  4. Bostic, Joe. UNIT.CPP. Red Alert: Aftermath. “Sound_Effect(VOC_MAD_EXPLODE, Center_Coord()); [...] PendingTimeQuake = true; // trigger a time quake”
  5. Bostic, Joe. RULES.CPP. Red Alert: Aftermath. “QuakeUnitDamage = 0x080; QuakeBuildingDamage = 0x040; QuakeInfantryDamage = 0;”
  6. Bostic, Joe. RULES.CPP. Red Alert: Aftermath. “"For the time quake crate, scan through and count up all the units (and infantry and ships and aircraft) and if either side has very few, allow the time quake. Otherwise, change the crate to money or something. Only do this formultiplay - for solo play, they get what they get. First, check for time - the chance for getting a time quake crate should be very very low when they first start the mission,but as time goes on the chance goes up”
  7. Nyerguds (01/22/2020). Reddit. “I'm not sure if the Time Quake as side effect of the Chronosphere is actually still a thing in RA, or if it got patched out. When digging into the RA v0.09c beta we encountered quite a bunch of them, though.”