Survival class info: Class 0 - No Danger: These levels are completely safe, and are good spots to rest. Class 1 - Low Danger: These levels are mostly safe, with a few threats being present. Class 2 - Hazardous: Levels in this difficulty start becoming unsafe for inexperienced wanderers, due to them having dangerous entities and environmental hazards. Class 3 - Moderate Danger: Levels with this difficulty are risky to enter, with most inexperienced wanderers dying here. It is recommended to bring supplies and a weapon to these levels. Class 4 - High Danger: Levels at this difficulty should be avoided unless you know what your doing. These levels may contain high amounts of entities, and many other hazards. Class 5 - Serious Danger: Levels at this difficulty should be avoided at all costs, as even the most skilled wanderers struggle here. Class 6 - Extreme Danger: Levels at this difficulty are nearly impossible to survive in for more than an hour, and should never be entered without large groups of people. Class DEADZONE - Certain Death: Levels at this class are completely impossible to get through alive, with no-one surviving in them for more than 20 minutes. Misc. classes: Class S - Sanity Hazard: This class is used for levels that will drain your sanity extremely fast, or leave permanent effects on the person who enters. Class X - Instant Death: Pretty self-explanatory, these levels have no escape, and/or will kill you instantly. Other classifications: Safe/Unsafe: Self-explanatory, tells you if the level is safe or not. Secure/Unsecure: Unsecure levels don't have many colonies, if any, and aren't well mapped compared to secure levels (or not mapped at all).
