Action RPGs have always been about two things: devastating skills and valuable items. Skills in Path of Exile are items - gems that grant abilities when socketed into equipment. A wide range of support gems allow the behaviour of skills to be modified. You can augment your Fireball to chain from enemy to enemy or split into multiple flaming projectiles. Up to five support gems can affect a skill at any time. Because gems level up independently and some are hard to find, they can be very valuable in trade.

动作类RPG一向包含两种要素：杀伤性技能和具有价值的物品。而技能在流放之路中就是物品——镶入装备中即可给角色带来能力的宝石。海量的辅助技能石让技能可以有不同的表现。你可以将火球攻击连续链状攻击多个敌人，也可以将其分叉为多发投射物（详见公测视频）。同一个技能最多可以连接五个辅助技能并同时发挥作用。因为所有宝石都是独立升级，且部分宝石非常稀有，所以可以作为高价值物品进行交易。

All of Path of Exile's character classes share its vast passive skill tree. Starting at one of seven distinct locations dictated by their chosen class, players can focus on the core specialities of their class or travel across the tree to build complex combinations of skills from various disciplines. Scattered across the tree are Keystone passives that drastically alter the way a character is played. Resolute Technique removes your ability to get critical strikes, but also prevents enemies evading your attacks. Necromantic Aegis grants the properties of your shield to your minions rather than to you. Combining these passives with clever item and skill gem choices allows players deep levels of customisation.

所有流放之路的角色都使用相同且浩大的技能树（一共1350个技能点）。职业将决定玩家在技能树中的起始位置，玩家可以专精于该职业本身的能力，也可以横跨整个技能树，利用不同的复杂组合创造更强的角色。散落各处的关键点（keystone）将大幅，甚至从根本上改变一个角色的行动方式。（例如）Resolute Technique（果断技巧）将令角色再也无法暴击，但也令攻击无法被敌人闪避。Necromantic Aegis（死灵庇护）将把你盾（装备）上的属性从你身上转移到你的跟班上（僵尸、骷髅等）。巧妙地组合这些被动技能和特定的装备可以让角色独具一格（或独当一面）

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