This major update of ISS introduces the new perks system. Perks provide passive bonuses and effects to the player and are non-activatable. The player can have 4 perks in total and they occupy slots separate from abilities. Other notable features of this update include a redesigned HUD, a new map, many layout and design changes to existing maps and various gameplay changes and bug fixes. Refer to the full changelog for details.

Full Changelog

Added

• Perks system.
• Iron Lung perk.
• Masterful Movement perk.
• Hardened perk.
• Overkill ability.
• Firewall ability.
• Quick Escape ability.
• Setting for enabling/disabling auto-pausing when the window loses focus.
• Activation effect for first-aid expert.
• Furniture tool to map editor.
• Various new types of furniture.
• Grenade trails.
• Damaged vehicles now emit smoke.
• Suburbs map.
• Alert that displays when trying to fire a weapon while reloading.
• Alert that displays when trying to fire a weapon with no ammo.

Changed

• All non-activatable abilities have been converted to perks.
• Some abilities now require stamina to be activated while others have cooldowns.
• Map layouts/design.
• Furniture now creates debris when destroyed.
• Increased size of damage text.
• The merchant in Zombie Onslaught no longer sells item crates.
• Internal works of the minimap for increased performance.
• Reworked the info text system.
• Water tiles can now be created in the editor without a coastline.
• Reworked minimap logic for increased performance.
• Reworked Push Back ability to last for an extended duration.
• Reworked Magnetism perk to only pull useable item crates when the player has empty inventory spaces.
• Significant improvements to overall memory usage.
• Return to Sender perk now always returns damage.
• Increased Life Steal perk activation chance by 5%.
• Reworked and redesigned the HUD.
• Design and layout of interaction text.
• System username now displays in the deathmatch kill feed.
• Minimap is now rendered as a circle and is positioned in the top-right of the screen.
• Made fire rate weapon mod available for auto shotgun.
• Made extended magazine weapon mod available for auto shotgun and AK47.
• Bullets now have a base critical damage chance of 5%.
• Ultra Crit perk now increases critical hit damage chance by 35%.
• Soldiers now spawn with either a rifle or a shotgun.
• Soldiers that spawn with a rifle now have a 5% chance to spawn with a laser sight.
• Poison zombies now disperses orbs that emit poisonous gas when killed.
• Slight adjustments to zombie damage in late-game phases.

Fixed

• NPC weapons not being removed correctly in certain situations.
• Incorrect sizing of screen bloom effect in certain situations.
• Soldiers will no longer walk on top of the barriers of their base.