diff --git a/OpenRA.Mods.RA/Buildings/RepairableBuilding.cs b/OpenRA.Mods.RA/Buildings/RepairableBuilding.cs
index 0b2dd70e89..5ef8fd8a79 100755
--- a/OpenRA.Mods.RA/Buildings/RepairableBuilding.cs
+++ b/OpenRA.Mods.RA/Buildings/RepairableBuilding.cs
@@ -9,6 +9,9 @@
 #endregion
 
 using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Linq;
 using OpenRA.Mods.RA.Effects;
 using OpenRA.Traits;
 
@@ -20,6 +23,8 @@ namespace OpenRA.Mods.RA.Buildings
 		public readonly int RepairPercent = 20;
 		public readonly int RepairInterval = 24;
 		public readonly int RepairStep = 7;
+		public readonly int[] RepairBonuses = { 100, 150, 175, 200, 220, 240, 260, 280, 300 };
+
 		public readonly string IndicatorPalettePrefix = "player";
 
 		public object Create(ActorInitializer init) { return new RepairableBuilding(init.self, this); }
@@ -27,7 +32,9 @@ namespace OpenRA.Mods.RA.Buildings
 
 	public class RepairableBuilding : ITick, ISync
 	{
-		[Sync] public Player Repairer = null;
+		[Sync]
+		public int RepairersHash { get { return Repairers.Aggregate(0, (code, player) => code ^ Sync.hash_player(player)); } }
+		public List<Player> Repairers = new List<Player>();
 
 		Health Health;
 		RepairableBuildingInfo Info;
@@ -39,26 +46,21 @@ namespace OpenRA.Mods.RA.Buildings
 			Info = info;
 		}
 
-		public void RepairBuilding(Actor self, Player p)
+		public void RepairBuilding(Actor self, Player player)
 		{
-			if (self.HasTrait<RepairableBuilding>())
+			if (self.AppearsFriendlyTo(player.PlayerActor))
 			{
-				if (self.AppearsFriendlyTo(p.PlayerActor))
+				// If the player won't affect the repair, we won't add him
+				if (!Repairers.Remove(player) && Repairers.Count < Info.RepairBonuses.Length) 
 				{
-					if (Repairer == p)
-						Repairer = null;
+					Repairers.Add(player);
+					Sound.PlayNotification(self.World.Map.Rules, player, "Speech", "Repairing", self.Owner.Country.Race);
 
-					else
+					self.World.AddFrameEndTask(w =>
 					{
-						Repairer = p;
-						Sound.PlayNotification(self.World.Map.Rules, Repairer, "Speech", "Repairing", self.Owner.Country.Race);
-
-						self.World.AddFrameEndTask(w =>
-						{
-							if (!self.IsDead())
-								w.Add(new RepairIndicator(self, Info.IndicatorPalettePrefix, p));
-						});
-					}
+						if (!self.IsDead())
+							w.Add(new RepairIndicator(self, Info.IndicatorPalettePrefix));
+					});
 				}
 			}
 		}
@@ -67,32 +69,39 @@ namespace OpenRA.Mods.RA.Buildings
 
 		public void Tick(Actor self)
 		{
-			if (Repairer == null) return;
-
 			if (remainingTicks == 0)
 			{
-				if (Repairer.WinState != WinState.Undefined || Repairer.Stances[self.Owner] != Stance.Ally)
-				{
-					Repairer = null;
-					return;
-				}
+				Repairers = Repairers.Where(player => player.WinState == WinState.Undefined
+						&& player.Stances[self.Owner] == Stance.Ally).ToList();
 
+				// If after the previous operation there's no repairers left, stop
+				if (!Repairers.Any()) return;
 				var buildingValue = self.GetSellValue();
 
+				// The cost is the same regardless of the amount of people repairing
 				var hpToRepair = Math.Min(Info.RepairStep, Health.MaxHP - Health.HP);
 				var cost = Math.Max(1, (hpToRepair * Info.RepairPercent * buildingValue) / (Health.MaxHP * 100));
-				RepairActive = Repairer.PlayerActor.Trait<PlayerResources>().TakeCash(cost);
+
+				// TakeCash will return false if the player can't pay, and will stop him from contributing this Tick
+				var activePlayers = Repairers.Count(player => player.PlayerActor.Trait<PlayerResources>().TakeCash(cost));
+
+				RepairActive = activePlayers > 0;
+
 				if (!RepairActive)
 				{
 					remainingTicks = 1;
 					return;
 				}
 
-				self.InflictDamage(self, -hpToRepair, null);
+				// Bonus is applied after finding players who can pay
+				
+				// activePlayers won't cause IndexOutOfRange because we capped the max amount of players
+				// to the length of the array
+				self.InflictDamage(self, -(hpToRepair * Info.RepairBonuses[activePlayers - 1] / 100), null);
 
 				if (Health.DamageState == DamageState.Undamaged)
 				{
-					Repairer = null;
+					Repairers.Clear();
 					return;
 				}
 
diff --git a/OpenRA.Mods.RA/Effects/RepairIndicator.cs b/OpenRA.Mods.RA/Effects/RepairIndicator.cs
index 445fd4a8b2..6e2c6fe5fc 100755
--- a/OpenRA.Mods.RA/Effects/RepairIndicator.cs
+++ b/OpenRA.Mods.RA/Effects/RepairIndicator.cs
@@ -9,6 +9,7 @@
 #endregion
 
 using System.Collections.Generic;
+using System.Linq;
 using OpenRA.Effects;
 using OpenRA.Graphics;
 using OpenRA.Mods.RA.Buildings;
@@ -18,27 +19,27 @@ namespace OpenRA.Mods.RA.Effects
 	class RepairIndicator : IEffect
 	{
 		readonly Actor building;
-		readonly Player player;
 		readonly string palettePrefix;
 		readonly Animation anim;
 		readonly RepairableBuilding rb;
+		int shownPlayer = 0;
 
-		public RepairIndicator(Actor building, string palettePrefix, Player player)
+		public RepairIndicator(Actor building, string palettePrefix)
 		{
 			this.building = building;
-			this.player = player;
 			this.palettePrefix = palettePrefix;
 
 			rb = building.TraitOrDefault<RepairableBuilding>();
 			anim = new Animation(building.World, "allyrepair");
 			anim.Paused = () => !rb.RepairActive;
-			anim.PlayRepeating("repair");
+
+			CycleRepairer();
 		}
 
 		public void Tick(World world)
 		{
-			if (!building.IsInWorld || building.IsDead() ||
-				rb == null || rb.Repairer == null || rb.Repairer != player)
+			if (!building.IsInWorld || building.IsDead() || 
+				rb == null || !rb.Repairers.Any()) 
 				world.AddFrameEndTask(w => w.Remove(this));
 
 			anim.Tick();
@@ -49,8 +50,16 @@ namespace OpenRA.Mods.RA.Effects
 			if (building.Destroyed || wr.world.FogObscures(building))
 				return SpriteRenderable.None;
 
-			return anim.Render(building.CenterPosition,
-					wr.Palette(palettePrefix+player.InternalName));
+			return anim.Render(building.CenterPosition, 
+				wr.Palette(palettePrefix + rb.Repairers[shownPlayer % rb.Repairers.Count].InternalName));
+		}
+
+		void CycleRepairer() 
+		{
+			anim.PlayThen("repair", CycleRepairer);
+
+			if (++shownPlayer == rb.Repairers.Count)
+				shownPlayer = 0;
 		}
 	}
 }