发展系统概述 / Progression System Overview
城市天际线2的发展系统通过里程碑（Milestones）和发展点（Development Points）来引导城市成长。随着城市人口增长和各项指标的达成，玩家逐步解锁新的建筑、服务和政策选项。理解发展系统的运作机制可以帮助玩家制定合理的发展路线图，高效推进城市建设。
Cities: Skylines 2’s progression system guides city growth through Milestones and Development Points. As the city population grows and various indicators are achieved, players gradually unlock new buildings, services, and policy options. Understanding the progression system’s mechanics helps players formulate a reasonable development roadmap and efficiently advance city construction.
发展点机制 / Development Points Mechanics
发展点（Development Points）是一种特殊资源，通过达成特定里程碑获得。发展点用于解锁升级项目（Upgrades），这些升级项目可以增强现有建筑的功能或解锁新的功能模块。发展点不可交易或转换，只能通过城市发展自然获得。合理分配发展点是城市进阶发展的重要决策。每个里程碑提供的发展点数量有限，需要审慎选择升级项目。
Development Points are a special resource obtained by achieving specific milestones. They are used to unlock upgrades that enhance existing building functions or unlock new functional modules. Development Points cannot be traded or converted; they are only naturally obtained through city development. Reasonable allocation of Development Points is an important decision for advanced city development. Each milestone provides a limited number of points, requiring careful selection of upgrade projects.
里程碑触发条件 / Milestone Trigger Conditions
里程碑的触发主要基于城市人口规模，但也涉及其他条件。人口达到特定阈值是解锁下一等级的主要条件。此外，满足居民的各项需求、保持预算平衡、维持一定的幸福度水平也会影响里程碑的达成速度。某些特殊里程碑需要达成特定目标，例如建设全部教育设施或建立完整的公共交通网络。
Milestone triggers are primarily based on city population size but also involve other conditions. Reaching specific population thresholds is the main condition for unlocking the next tier. Additionally, meeting resident needs, maintaining budget balance, and sustaining certain happiness levels affect milestone achievement speed. Some special milestones require specific goals, such as building all education facilities or establishing a complete public transit network.
城市等级体系 / City Tier System
第一级：小村庄（Tier 1）/ Small Village
这是城市发展的起点。可解锁范围包括基础道路类型、低密度区域划分、小型电力设施、基础供水系统。建议优先建设稳定的基础设施和划分初级住宅工业区。这一阶段目标是实现人口 200 人和正的月度现金流。不需要太多公共服务，专注于基础建设和吸引居民。
This is the starting point of city development. Unlockable options include basic road types, low-density zoning, small power facilities, and basic water systems. It is recommended to prioritize stable infrastructure and initial residential and industrial zoning. The goal for this stage is reaching 200 population and positive monthly cash flow. Not many public services are needed; focus on basic construction and attracting residents.
第二级：小城镇（Tier 2）/ Small Town
人口达到 200 后解锁。新增可用的建筑和服务包括诊所、消防局、公交系统基础、小型变电站升级。此时可以开始规划社区中心和基础公共交通线路。建设诊所可以管理居民健康，消防局预防火灾风险。这一阶段目标是稳定人口增长到 500 并开始积累发展点。
Unlocked after reaching 200 population. Newly available buildings and services include Medical Clinic, Fire Station, basic Bus system, and Small Transformer Station upgrades. Community centers and basic public transit routes can now be planned. Building a clinic manages resident health, and a fire station prevents fire risks. The goal for this stage is穩定 population growth to 500 and starting to accumulate Development Points.
第三级：城镇（Tier 3）/ Town
人口 500 解锁。新增设施包括小学、警察局、小型公墓、污水处理厂升级选项。教育系统正式开启，早期教育投资影响未来劳动力结构。警察局维护社会治安，为城市扩张创造安全环境。这一阶段城市具备了基本的自我调节能力，可以开始中规模扩张规划。
Unlocked at 500 population. New facilities include Elementary School, Police Station, small Cemetery, and Wastewater Treatment Plant upgrade options. The education system officially opens; early education investment affects future workforce structure. Police stations maintain social order, creating a safe environment for city expansion. At this stage, the city has basic self-regulation capabilities and可以开始 mid-scale expansion planning.
第四级：大城市（Tier 4）/ Big City
人口 1000 解锁。新增设施包括中学、消防直升机停机坪、医院（初级）、邮政服务、高级道路类型。城市开始具备完善的服务体系。教育体系从基础走向中等，医疗服务从诊所升级到医院。高级道路类型支持更复杂的交通网络设计。这一阶段是城市量变到质变的关键转折点。
Unlocked at 1000 population. New facilities include High School, Fire Helicopter Pad, primary Hospital, Postal Service, and advanced road types. The city starts to develop a complete service system. Education progresses from basic to secondary, and medical services upgrade from clinics to hospitals. Advanced road types support more complex traffic network designs. This stage is a key turning point from quantitative to qualitative change.
第五级：大都市（Tier 5）/ Metropolis
人口 2500 解锁。新增设施包括大学、地铁系统、大型医疗中心、专业工业区、全方位升级选项。城市进入高阶发展阶段。大学培养高学历人才，地铁系统解决大规模交通需求，专业工业区推动产业链升级。这一阶段城市具备了现代化大都市的基本要素。后续还有更高等级等待探索。
Unlocked at 2500 population. New facilities include University, Metro system, large Medical Center, Specialized Industry zones, and comprehensive upgrade options. The city enters an advanced development stage. Universities cultivate highly educated talent, metro systems solve大规模 transit needs, and specialized industrial zones drive production chain upgrades. At this stage, the city has the basic elements of a modern metropolis. Higher tiers await exploration beyond this.
建筑升级系统 / Building Upgrade System
服务设施升级 / Service Facility Upgrades
大多数公共服务设施支持升级扩展。医院可以增加床位和科室，学校可以扩建教学楼，警察局可以增加车辆编制。每次升级需要消耗发展点，但可以显著提升设施容量和服务质量。升级决策需要基于实际需求，避免过度升级导致资源浪费。优先升级需求最迫切的设施是明智的资源分配策略。
Most public service facilities support upgrade expansion. Hospitals can increase beds and departments, schools can expand teaching buildings, and police stations can increase vehicle fleets. Each upgrade consumes Development Points but significantly improves facility capacity and service quality. Upgrade decisions should be based on actual demand to avoid resource waste from over-upgrading. Prioritizing upgrades for the most urgently needed facilities is a wise resource allocation strategy.
道路升级 / Road Upgrades
道路升级是城市发展中的重要环节。随着交通流量增长，低等级道路需要升级为高等级道路。道路升级可以直接在现有线位上执行，不会破坏周边建筑。升级时机需要准确把握：过早升级浪费资金，过晚升级导致交通堵塞。除了道路宽度升级，还可以添加行道树、路灯、自行车道等附属设施提升道路品质。
Road upgrades are an important part of city development. As traffic grows, lower-grade roads need upgrading to higher-grade roads. Road upgrades can be performed directly on existing alignments without destroying surrounding buildings. Timing needs accurate把握: premature upgrades waste funds, while delayed upgrades cause traffic congestion. Beyond width upgrades,附属设施 like street trees, streetlights, and bike lanes can be added to improve road quality.
标志性建筑 / Signature Buildings
解锁条件 / Unlock Conditions
标志性建筑（Signature Buildings）是城市天际线2中具有特殊功能或美学价值的独特建筑。每种标志性建筑都有特定的解锁条件，包括人口要求、特定里程碑、特定的城市指标等。部分标志性建筑需要通过完成特定挑战来解锁。标志性建筑提供了独特的城市增益效果，例如提升土地价值、增加观光收益或改善特定服务效率。
Signature Buildings are unique structures with special functions or aesthetic value in Cities: Skylines 2. Each signature building has specific unlock conditions, including population requirements, specific milestones, and particular city indicators. Some require completing specific challenges to unlock. Signature buildings provide unique city buffs, such as boosting land value, increasing tourism revenue, or improving specific service efficiency.
建筑功能分类 / Building Function Categories
标志性建筑按功能分为多个类别。增益类提供全局或区域性的城市发展加成。美观类提升城市景观价值和吸引力。文化类如博物馆和剧院丰富市民文化生活。交通类如大型交通枢纽提升运输效率。每个标志性建筑的放置都需要考虑其效果范围和周边环境配合。
Signature buildings are categorized by function. Buff types provide global or regional city development bonuses. Aesthetic types enhance city landscape value and attractiveness. Cultural types like museums and theaters enrich citizen cultural life. Transportation types like large transit hubs improve transport efficiency. Each signature building placement must consider its effect range and surrounding environment coordination.
独特建筑与地标 / Unique Buildings & Landmarks
独特建筑（Unique Buildings）与标志性建筑类似但通常有更具体的主题或功能。地标（Landmarks）是基于真实世界知名建筑的复制品，如埃菲尔铁塔、自由女神像等。地标主要为城市增加观光吸引力和文化价值，部分地标也提供功能性增益。收集和放置独特的建筑是游戏后期的重要内容。地标建筑通常占地面积较大，需要预留足够的空间。
Unique Buildings are similar to Signature Buildings but usually have more specific themes or functions. Landmarks are replicas of real-world famous buildings, such as the Eiffel Tower and Statue of Liberty. Landmarks primarily add tourism attraction and cultural value to the city, with some also providing functional bonuses. Collecting and placing unique buildings is important content in the late game. Landmarks typically occupy large areas, requiring adequate空间预留.
发展策略建议 / Development Strategy Tips
高效发展的核心是平衡。在追求人口增长的同时，不要忽视服务质量和财政健康。优先解锁与城市当前需求匹配的升级项目，而不是提前解锁未来才需要的功能。每个发展阶段都有特定的瓶颈，提前识别并解决可以保持发展势头的连续性。定期查看发展面板，了解可解锁的项目和条件，制定长期发展计划。
The core of efficient development is balance. While pursuing population growth, do not neglect service quality and fiscal health. Prioritize unlocking upgrades that match current city needs rather than提前 unlocking future features. Each development stage has specific bottlenecks;提前 identifying and solving them maintains development momentum continuity. Regularly check the development panel to understand unlockable projects and conditions, formulating long-term development plans.
发展优先级排序 / Development Priority Order
合理的发展优先级可以加快城市成长速度。第一优先级是确保基础设施（电力、供水）覆盖所有已开发区域。第二优先级是提供基础公共服务（医疗、消防、教育）。第三优先级是优化交通网络，提高物流效率。第四优先级是提升城市品质（公园、地标、环境）。第五优先级是发展高阶产业和经济多元化。按照这个优先级顺序分配发展点和资金，可以获得最高的发展效率。
Reasonable development priority accelerates city growth. First priority is ensuring infrastructure (power, water) covers all developed areas. Second priority is providing basic public services (healthcare, fire, education). Third priority is optimizing transportation networks for logistics efficiency. Fourth priority is enhancing city quality (parks, landmarks, environment). Fifth priority is developing advanced industries and economic diversification. Allocating Development Points and funds according to this priority顺序 yields the highest development efficiency.
里程碑奖励列表 / Milestone Rewards List
每个里程碑达成时会提供特定的奖励。基础奖励包括一定数量的发展点和资金。后续里程碑逐步解锁新的建筑类型和服务设施。特殊里程碑提供标志性建筑的解锁资格。完成所有基础里程碑后，城市进入自由发展阶段，没有新的强制性解锁要求但仍然可追求特殊成就。里程碑奖励的具体内容和数量可以在游戏内的发展面板中查看。了解每个里程碑的奖励可以帮助玩家更有针对性地规划发展路径。
Each milestone provides specific rewards when achieved. Basic rewards include a certain number of Development Points and funds. Subsequent milestones gradually unlock new building types and service facilities. Special milestones provide eligibility for signature building unlocks. After completing all basic milestones, the city enters a free development phase with no new mandatory unlock requirements but still able to pursue special achievements. The specific content and quantity of milestone rewards can be viewed in the in-game development panel. Understanding each milestone’s rewards helps players plan their development path more purposefully.
长期发展策略 / Long-Term Development Strategy
成功的城市发展需要长期规划视角。第一阶段打好基础设施和财政基础。第二阶段建立完善的教育和公共服务体系。第三阶段推动产业升级和城市品质提升。第四阶段实现经济多元化和可持续发展。每个阶段都有明确的重点目标，避免盲目扩张。定期评估城市发展状况，及时调整策略。长期规划需要预留弹性空间，为未来的扩展和变更保留可能性。一个成功的城市是多年精心规划和管理的结果。
Successful city development requires a long-term planning perspective. The first stage builds infrastructure and fiscal foundations. The second stage establishes complete education and public service systems. The third stage promotes industrial升级 and city quality improvement. The fourth stage achieves economic diversification and sustainable development. Each stage has clear focus goals to avoid盲目 expansion. Regularly evaluate city development status and adjust strategies promptly. Long-term planning needs flexible space, reserving possibilities for future expansion and changes. A successful city is the result of years of careful planning and management.
成就系统 / Achievement System
游戏内置了丰富的成就系统，为玩家提供额外的挑战目标。成就类型包括人口目标、经济目标、建设目标和社会目标。完成成就可以获得特殊奖励和徽章。部分成就需要在不使用模组的情况下达成。成就系统鼓励玩家尝试不同的城市发展策略。追求成就可以为游戏增加额外的乐趣和挑战性。查看成就列表可以了解游戏的各种可能玩法。
The game features a built-in achievement system providing additional challenge goals. Achievement types include population goals, economic goals, construction goals, and social goals. Completing achievements earns special rewards and badges. Some achievements must be achieved without using mods. The achievement system encourages players to try different city development strategies. Pursuing achievements adds extra fun and challenge to the game. Reviewing the achievement list reveals various possible gameplay approaches.
城市满意度与幸福度 / City Satisfaction & Happiness
市民的幸福度是衡量城市成功的重要指标。影响因素包括就业机会、收入水平、住房质量、环境质量、公共服务覆盖率和休闲设施等。高幸福度促进人口增长和税收收入。低幸福度导致人口流失和建筑废弃。定期检查幸福度面板了解市民的需求和不满。针对性地改进不足之处可以提升整体幸福度。幸福度管理是贯穿整个游戏过程的核心任务之一。
Citizen happiness is an important indicator of city success. Influencing factors include employment opportunities, income levels, housing quality, environmental quality, public service coverage, and recreational facilities. High happiness promotes population growth and tax revenue. Low happiness causes population loss and building abandonment. Regularly check the happiness panel to understand citizen needs and complaints. Targeting improvements in不足之处 boosts overall happiness. Happiness management is one of the core tasks throughout the entire game process.
城市发展节奏控制 / City Development Pace Control
控制城市发展节奏是避免问题的关键技能。快速增长可能导致基础设施和服务跟不上需求。缓慢增长可能导致财政效率低下。理想的发展速度是保持基础设施建设和人口增长同步。每新增一批住宅区后留出时间观察各项指标变化。在确认新居民的需求得到满足后再扩张。节奏控制需要经验积累，通过观察数据来感知城市是否发展过快。耐心是优秀市长的重要品质。
Controlling the city development pace is a key skill to avoid problems. Rapid growth may cause infrastructure and services to lag behind demand. Slow growth may lead to fiscal inefficiency. The ideal development speed keeps infrastructure construction and population growth synchronized. After each batch of new residential zones, allow time to observe indicator changes. Expand only after confirming new residents’ needs are met. Pace control requires experience积累 by observing data to sense whether the city is developing too fast. Patience is an important quality of a good mayor.
Tags: 城市发展, city progression, 里程碑, milestones, 发展点, development points, 城市等级, city tiers, 标志性建筑, signature buildings, 升级系统, upgrade system