Risk of Rain is a 2D action game where player takes control over a character that crashed on an unknown hostile planet. There are multiple layouts for each available stage, so each playthrough is a little different than the other. There is only one playable character available from the get go, but as player achieves certain listed milestones (for example reaching a specific level) more become available. The game contains roguelike elements: at every new run player character starts on level one with no items. Every kill yields experience and money, which allows for progression for that specific run. Each stage contains randomly placed portal, which must be activated in order to progress. Once activated, a 90 seconds timer is started and a random boss is spawned with lot of normal stage specific enemies. After the minute and a half is up, spawning stops and player must clear the stage from all remaining foes. When the last one falls, the portal activates and player is transported to another level. From the very beginning a separate timer is running, which increases difficulty in regular intervals. This prevents players to grind experience and money indefinitely - the difficulty spikes faster than it's possible to manage. This mechanic introduces a constant time pressure making the action move forward at a brisk pace. As the player progresses through the game, not only more characters (each with completely different skills) become available, but also more items for use in future runs. These can include variety of improvements from faster attack rate to healing on hits or summoning ghosts of enemies. These effects also stack which means player can pick up the same item multiple times for improved effect.
There are 10 different classes in Risk of Rain, each with different stats and 4 unique abilities.
The commando is the starting class and does not have to be unlocked.
|Double Tap||Shoot twice.||0|
|Full Metal Jacket||Shoots through and knock backs enemies.||3|
|Tactical Dive||A forward roll that dodges attacks.||4|
|Suppressive Fire||A rapid fire attack.||5|
The Enforcer becomes playable after defeating the Magma Worm, Wandering Vagrant, and Colossus on any difficulty.
|Riot Shotgun||Fires a short range shotgun that hits all enemies.||0|
|Shield Slam||Smash nearby enemies knocking them back.||5|
|Protect and Serve|
Blocks all damage that the player receives from the front.
Increases attack speed, but the player is unable to move.
|Crowd Control||Launch a stun grenade that stuns enemies.||5|
The Bandit becomes playable after beating the third stage on any difficulty.
|Blast||Fires a powerful slug for 150% damage.||0|
|Dynamite Toss||Toss an explosive in an arc for 230% damage.||3|
|Smokebomb||Turn invisible. After 3 seconds or using another ability, surprise and stun enemies for 140% damage.|
|Lights Out||Fire a headshot for 600% damage. If this ability kills an enemy, the Bandit's cooldowns are all reset to 0.||7|
The Huntress becomes playable after collecting 15 Monster Logs.
|Strafe||Fire an arrow for 140% damage.||0|
|Laser Glaive||Throw a glaive that bounces to up to 4 enemies for 300% damage. Damage increases by 30% each bounce.||3|
Teleport forwards a short distance.
|Cluster Bomb||Fire an explosive arrow for 320% damage.||7|
HAN-D becomes playable after finding the robot janitor.
|HURT||Apply force to all combatants for 180% damage.||0|
|DRONE||Fire a drone for 190% damage while also healing. Gain drones by killing enemies.||0|
Increase attack speed and stun chance by 30%. Increase duration by attacking enemies.
|FORCED-REASSEMBLY||Apply great force to all combatants for 400% damage, knocking them into the air.||5|
The Engineer becomes playable after buying 40 drones
|Tri-Nade||Launches 3 grenades.||0|
|Bounding Mine||Drop a mine, able to hold up to 15.||6|
|Thermal Harpoon||Launches 4 heat-seeking harpoons.||5|
|Auto-Turrent||Drops a turret for 30 seconds, able to hold up to 2.||40|
The Miner becomes playable after clearing a path for the survivor.
|Crush||Crush nearby enemies for 140% damage.||0|
|Drill Charge||Charge up to two seconds. On release, dash through enemies for up to 600% damage. Damage cannot be received while dashing.||8|
Blast backwards a small distance for 200% damage, stunning all enemies. Damage cannot be received while dashing.
|To The Stars||Jump into the air, hitting all enemies below for 3 x 180% total. Nothing can stop the quest against the anti-spirals.||5|
The Sniper becomes playable after beating the game on any difficulty.
|Snipe||Shoot an enemy for 250% damage, reactivating reloads weapon.||0|
|Steady Aim||Increases the damage dealt the longer the button is held.||4|
Backflip a large distance, cannot be hit while rolling.
|Spotter SCAN||Sends spotter the analyze the most dangerous enemy, increasing critical chance by 100%.||10|
Acrid becomes playable after freeing the chained creature.
|Festering Wound||Maul an enemy for 120% damage. The target is poisoned for 24% damage per second.||0|
|Neurotoxin||Spit toxic bile fort 220% damage, stunning enemies in a line for one second.||2|
Secrete poisonous sludge for two seconds. Speeds up allies while slowing and hurting enemies for 90% damage.
|Epidemic||Release a deadly disease, poisoning enemies for 100% damage per second. The contagion spreads to two targets after one second.||11|
The Mercenary becomes playable after beating the game five times on any difficulty.
|Laser Sword||A slash that damages up to 3 enemies in front of the player.||0|
|Whirlwind||Two quick slashes that damage all nearby enemies.||2|
Forward dash that stuns and damages enemies. If it connects, the player is then are able to dash again up to 3 times.
|Eviscerate||Target the nearest enemy for 6 x 110% damage; the player cannot be hit for the duration of the attack.||6|
There are about 101 unique items players can pick up and use throughout their adventure. Some items are locked until the player has completed an achievement, but most are available from the start. Items are dropped by bosses, purchased, found in chests, or earned from shrines. When an item is unlocked, it appears in the Item Log, which shows details about the item as well as lore related to it.
Items fall into two categories: usable items and passive items.
Players can have as many passive items as they can afford, but only one usable item at any given time. Passive items grant special effects or buffs to the player whereas usable items give the player a fifth skill unrelated to the character. Duplicate passive items are common and the effects do stack. Players may switch usable items whenever a new one is found if they choose to.
Risk of Rain has many different enemies to pit the player against. Most enemies are specific to a particular stage as well as level of the player. Not all enemies will only spawn in a given stage or at a given player level, though. There are also variations of the standard enemies that have a reduced chance of spawning. These special enemies will have particular abilities that other enemies will not. Special enemies are marked by being a different color than their normal variants.
The color tells the player what sort of effect the enemy will have. Red enemies will leave a trail of fire behind them as they move. Yellow enemies move faster than normal and have a chance to teleport directly to the player. Orange enemies have explosive attacks and launch projectiles toward the player. Blue enemies have lightning-based damage auras. Green enemies have more health and heal nearby enemies as well.
Bosses are also somewhat randomized. Each level is guaranteed one boss spawn from activating the teleporter, but sometimes more will spawn. Certain other events will also force boss spawns, sometimes even forcing a named boss to spawn. Most bosses are not locked to a certain stage, but some are, such as Ifrit only spawning in Frozen Tundra. Bosses range in their abilities from summoning enemies to ranged attacks to high movement speed. Each boss is particularly large and has lots of health, easily distinguishing them from other enemies in the area. There is also a chance for bosses to spawn with elemental effects like normal enemies. The final boss, Providence, has many of these abilities as well as being the only boss to engage players in a multi-phase battle.
Risk of Rain features an unusual difficulty scheme. There are three choices for difficulty when starting a game: Drizzle (easy), Rainstorm (normal), and Monsoon (hard).
However, regardless of the difficulty the player choose, the game will become progressively more difficult over time, even if players are not progressing through the game. The amount of time each difficulty lasts for depends on the overall difficulty the player chose. The 10 time-based difficulties are as follows:
- "Very Easy"
- "Very Hard"
- "I SEE YOU"
- "IM COMING FOR YOU"
- OS: Windows XP/Vista/7
- Processor: 2.5 GHz
- Memory: 1GB Ram
- Graphics: Direct X9.0c Compatible Card
- DirectX: 9.0
- Hard Drive: 130 MB available space