> For the complete documentation index, see [llms.txt](https://docs.monsterra.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.monsterra.io/gameplay/develop-land/landplots/breeding-den.md). # Breeding Den {% hint style="info" %} Romatic place where Mongen mates with other to create [Soulcore](/gameplay/develop-mongens/mongen.md#soulcore). {% endhint %} {% tabs %} {% tab title="Common" %} | ![](/files/29tTMJ7TxGGHtkxpI1kL) |

Name: Breeding Den
Rarity:
Type: Economy Landplot
Size: 2x2

| | :------------------------------: | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |


Lv.	HP	Breeding Time Reduced	Required Landcore level to upgrade	Upgrade Cost to next Level	Upgrade Time to next Level	Reward from completed upgrading
1	1250	0%	1	245	15552s	-
2	1675	0%	3	745	46656s	54 EXP
3	2240	0%	5	2235	139968s	142 EXP
4	3005	0%	7	6715	419904s	427 EXP
5	4030	0%	10	-	-	900 EXP

{% endtab %} {% tab title="Uncommon" %} | ![](/files/hm3MLoVOZICRL5I993GW) |

Name: Breeding Den
Rarity:
Type: Economy Landplot
Size: 2x2


Lv.	HP	Breeding Time Reduced	Required Landcore level to upgrade	Upgrade Cost to next Level	Upgrade Time to next Level	Reward from completed upgrading
1	2000	1%	1	495	31104s	-
2	2680	2%	3	1490	93312s	223 EXP
3	3590	3%	5	4475	279936s	739 EXP
4	4810	4%	7	13435	839808s	2,771 EXP
5	6445	5%	10	-	-	5,911 EXP

{% endtab %} {% tab title="Rare" %} | ![](/files/86ehaEnKR6fZXkFcMOls) |

Name: Breeding Den
Rarity:
Type: Economy Landplot
Size: 2x2


Lv.	HP	Breeding Time Reduced	Required Landcore level to upgrade	Upgrade Cost to next Level	Upgrade Time to next Level	Reward from completed upgrading
1	2750	2%	1	745	46656s	-
2	3685	4%	3	2235	139968s	349 EXP
3	4935	6%	5	6715	419904s	1,159 EXP
4	6615	8%	7	20155	1259712s	4,316 EXP
5	8865	10%	10	-	-	9,202 EXP

{% endtab %} {% tab title="Epic" %} | ![](/files/YE8NBxMKlcsR5n1lVhGT) |

Name: Breeding Den
Rarity:
Type: Economy Landplot
Size: 2x2


Lv.	HP	Breeding Time Reduced	Required Landcore level to upgrade	Upgrade Cost to next Level	Upgrade Time to next Level	Reward from completed upgrading
1	3500	5%	1	995	62208s	-
2	4690	10%	3	2985	186624s	476 EXP
3	6280	15%	5	8955	559872s	1,578 EXP
4	8420	20%	7	26870	1679616s	5,911 EXP
5	11280	25%	10	-	-	12,613 EXP

{% endtab %} {% tab title="Legendary" %} | ![](/files/AmUOvofRZvDm1YrxZlRH) |

Name: Breeding Den
Rarity:
Type: Economy Landplot
Size: 2x2


Lv.	HP	Breeding Time Reduced	Required Landcore level to upgrade	Upgrade Cost to next Level	Upgrade Time to next Level	Reward from completed upgrading
1	4000	10%	1	1240	77760s	-
2	5360	20%	3	3730	233280s	602 EXP
3	7180	30%	5	11195	699840s	2018 EXP
4	9620	40%	7	33590	2099520s	7547 EXP
5	12895	50%	10	-	-	16094 EXP

{% endtab %} {% endtabs %}