Technology tree
[ar] شجرة التكنولوجيا
[ca] Arbre tecnològic
[de] Technologiebaum
[es] Árbol tecnológico
[fa] درخت تکنولوژی
[fr] Arbre des technologies
[it] Albero tecnologico
[ko] 테크놀로지 트리
[nl] Technologieboom
[pl] Drzewo technologiczne