This mod aims to implement features from the Gradius series as well as from other classic shoot-em-up games. The mod also changes some vanilla aspects of the game regarding drones.

It contains a fully functional Drone API. The documentation can be found in the wiki.

Use Thunderstore Mod Manager to install this mod.

If one does not want to use a mod manager, then get the DLL from Thunderstore.

Gradius' Option

• A new Red Item added to Risk of Rain 2. Upon receiving this item, all owned drones of the receiver will gain an Option/Multiple for each stack.
• Gradius is known for its feature of Options/Multiples where in these weapons are invulnerable to all damage, and are able to copy the full arsenal of the main ship.
• For this mod, the Options/Multiples will only copy the main attacks of the drone.
• All vanilla minions (both mechanical and organic) are supported.
• All drones from this mod are also supported.
• Options/Multiples are able to duplicate all attacks of Aurelionite. The Rock Turret will attack faster instead of being copied.
• Options/Multiples will only duplicate the ranged attack of Beetle Guards. Their melee attacks will have multiplied damage, however.
• Equipment Drones will use the attached equipment depending on the number of Options/Multiples it has. This is configurable.
• Documentation is available for other mod creators. Check the wiki.

Gradius' Option Seed

• A new Green Item added to Risk of Rain 2. Upon acquiring this item, 2 Option Seeds will spawn for the player. They will duplicate the survivor's attacks for a % of damage dealt.
• The Option Seed is a fragment of the completed version of it. While it is in its younger stage, it is more organic than mechanical.
• Only offensive skills of vanilla survivors can be duplicated.
• The API makes it possible to implement customized skill behavior, even with non-offensive ones.
• Documentation is available for other mod creators with modded survivors. Check the wiki.

Beam Drone

• A drone powered by this mod's API. Check the wiki on how to add your own custom drone.
• This drone shoots a continuous beam on its target.
• The drone is accurate, however, it is weak at keeping its lock on consistently.
• The drone will appear in Stage 3 and onwards.
• The drone will spawn more in Sky Meadow.
• Options also copy this drone's attacks.

Laser Drone

• A drone powered by this mod's API. Check the wiki.
• The drone charges for a short amount of time, and then unleashes a strong laser attack, dealing huge amount of damage in an AoE.
• The drone will appear in Stage 3 and onwards.
• The drone will spawn more in Sky Meadow.
• Options also copy this drone's attacks.

Psy Drones

• A drone powered by this mod's API. Check the wiki.
• Each drone unleashes strong and unique laser attacks.
• The drones can be bought as one.
• If one of them is destroyed, the other will also be decommissioned.
• Upon being destroyed, the first one to make contact with the map will spawn the interactable again if it is configured to be repurchaseable.
• The drones may appear as soon as in Stage 1, but it is expensive.
• Options also copy each drone's attacks, although not completely.

Artifact of Machines

• An artifact added to Risk of Rain 2. Survivors will have a TC-280 Prototype drone when they spawn. Enemies, however, will also get drones.
• The Bacterian essence has drifted towards the embrace of the Planet. The Bulwark deemed it dangerous, and thus keeping it sealed in an artifact.
• No more drones can be repurchased when this artifact is active.
• When the owner dies, the drones will be decommissioned as well.
• Enemy drones will also have Gradius' Option if the Artifact of Evolution gives the item to the enemy.
• Configure Gradius' Option so that it is not blacklisted.

• Emergency Drone's Null Exception Reference fix. Configurable to be turned off.
• Allows all drones to be repurchaseable. Configurable each.
• Allows an Equipment Drone to have a chance to drop its equipment upon being destroyed. Configurable.
• Makes the Flame Drones spawn more in Abyssal Depths. Config options also offer to allow Flame Drones to spawn more in Scorched Acres.
• Changes vanilla drone behaviors to be smarter, eliminating the problem of them attacking their own owners as well as widens mod compatibility.
• Set category of Gunner Turrets as Drones instead of Miscellaneous so that the Director will not spawn too many Gunner Turrets. Configurable.

• Issue Page: https://github.com/cheeeeeeeeeen/RoR2-ChensGradiusMod/issues
• Email: blancfaye7@gmail.com
• Discord: Chen#1218
• RoR2 Modding Server: https://discord.com/invite/5MbXZvd
• Give a tip through Ko-fi: https://ko-fi.com/cheeeeeeeeeen

Phreelosu continued to maintain the mod in working order for the latest updates (as of September 1, 2024).

• Contact: GitHub Account

Kirbsuke#0352 made the 3D model for the Option/Multiple, and later used for the icon.

• Contact: kirbydamaster@gmail.com or through Discord.

manaboi#4887 helped me edit the icon to make it look like one with vanilla items. Also made Artifact of Machines icon.

• Contact: Through Discord.

KomradeSpectre#8468 made the 3D model for the Beam Drone and Laser Drone, which was also used for their icons.

• Contact: Through Discord.

3.6.0

• Added Option Seed support for Railgunner, Void Fiend, Seeker, Chef and False Son

3.5.5

• Initial fixes for SotS, you can ignore the startup errors of TILER2, wont break anything ingame
• Temporarily disabled Artifact of Machines until TILER2's artifacts are fixed

3.5.4

• Recompile for TILER2's breaking changes.
• Remove itemstats and betterui compatibility.

3.5.3

• With the changes of how things spawn in a map, the code must be updated to allow drones to spawn as well.
• Implement changes of new DirectorAPI.

3.5.2

• Update references to fetch the new R2API and the new DirectorAPI changes.

3.5.1

• Get rid of deprecation.
• Remove tests to reduce complexity for new maintainers.

3.5.0

• Update the code so that it works with the latest version.
• The code still has deprecation warnings.

For the full changelog, check this wiki page.